Celestron 71009 Cameras User Manual

TELESCOPE PRODUCT GUIDE

2005/2006

ABOUT CELESTRON

TABLE OF CONTENTS

C14 • Rosette Nebula • Image courtesy of Richard Hedrick

The history of Celestron dates

back to 1957 when it was

founded and incorporated as

Valor Electronics by Mr.Tom

Johnson, an electrical engineer

and avid amateur astronomer.

Mr. Johnson’s passion for

telescope making became the

basis for the future of his company. The name of the company was soon

changed to Celestron. In 1980, Celestron was acquired by the Swiss firm

Diethelm Ltd. In 1998 Tasco International, a large global marketer and

distributor of telescopes binoculars and other

sport optics products, purchased Celestron

from Diethelm. In June of 2002, Tasco Intl.

ceased operations and as a result three

members of Celestron’s senior management

purchased Celestron. This acquisition initiated

a new era for Celestron and began the

implementation and realization of long-term

goals of designing, manufacturing, and

marketing a new generation of telescope, binocular, and sport optics products

to an ever-increasing market. Under its new management, Celestron has

expanded its channels of distribution and increased its product selection in

order to better serve its customers.

Celestron is a U.S.-based company with manufacturing and corporate offices

located in Torrance, California and a new and extensive warehouse and

distribution center located in nearby Carson, California. Celestron’s Schmidt-

Cassegrain optical systems are manufactured entirely in the Torrance facility.

All of Celestron’s products are designed and manufactured to meet the highest

production and quality standards. This commitment to quality and value has

always been the foundation for Celestron and the products we offer to our

customers. We emphasize the attention to detail that goes into each of

our products and the strict quality control standards that are enforced.

In all of these products, our mission is to provide the highest quality optical

products at a competitive price.

Celestron takes pride in its reputation for innovation.These

innovations, which have changed the landscape of amateur

astronomy, began with the introduction of the first commercially

available Schmidt-Cassegrain telescope. Below are some of the

notable innovations Celestron has introduced over the years*.

• 1966 — Introduced the first commercially available

Schmidt-Cassegrain telescopes.

• 1969 — First to have an entire line of Schmidt-Cassegrain

telescopes; the now famous C6, C8, C10, C12, C16,

and C22.

• First to offer commercially available Observatory Class Telescopes,

the C16 and C22.

• First to offer commercially available Schmidt Cameras

in the late 1960’s.

• Popularized the Cold Camera in the early 1970’s.

• Popularized piggyback photography.

• 1979 — Popularized the Maksutov-Cassegrain optical design

in astronomy with the introduction of the C90 Astro

for $495.

• 1979 — Popularized Maksutov-Cassegrains as spotting scopes

with the introduction of the C90 Spotter.

• Popularized eyepiece projection with the introduction of tele-

extenders for Celestron’s line of Schmidt-Cassegrain telescopes.

• Popularized off-axis guiders for long exposure photography.

• 1983 — First to offer enhanced reflectivity and transmission

coatings with the introduction of StarBright

coatings.

• First to offer a telescope drive system that utilized 9V batteries.

• 1987 — First to introduce the Compustar 14, a mass-produced

fully-integrated computerized GoTo observatory class

telescope.

• 1996 — First to offer the Ultima 2000, a computerized telescope

that utilized AA batteries as a power source.

• First to introduce a commercially available reducer/corrector

for Schmidt-Cassegrain telescopes.

• First and currently the only commercial telescope manufacturer

to offer true hand-figured and matched optics in Schmidt-

Cassegrain telescopes.

• First to offer a commercially available 8” fork mounted Schmidt-

Cassegrain for under $1,000 with the introduction of the Celestar.

• 1997 — First to offer a commercially available Schmidt-Cassegrain

telescope capable of f/2 CCD imaging with the

introduction of the Fastar

System.

• 2001 — Introduced the first commercially available

Schmidt-Cassegrain telescope with carbon fiber

optical tube, the NexStar 11 GPS.

• 2001 — First to offer a commercially available fully computerized

GoTo telescope with integrated GPS and compass with

the introduction of the NexStar 11GPS.

• 2002 — Introduced the NexStar 5i and 8i, the first commercially

available telescopes to be GPS compatible.

• 2002 — Introduced the CN16 GPS, a commercially available

GPS accessory with an integrated compass that provides

GPS functions to Celestron GPS-compatible computerized

telescopes.

*For information on Celestron’s latest telescope innovations, see pg. 2

CONTENTS

History of Celestron...........................................................................................1

New Telescope Technologies .............................................................................2

Telescope Basics ...........................................................................................3-5

FirstScope Series...........................................................................................7-8

StarHopper Series........................................................................................9-10

NexStar SLT Series ....................................................................................11-12

Advanced Series........................................................................................13-16

CPC Series.................................................................................................17-18

CGE Series.................................................................................................19-20

C20 Astrograph..........................................................................................21-22

Optical Tube Assemblies..................................................................................23

Mounts, Tripods & Accessories...................................................................24-25

Detailed Product Specifications..................................................................26-34

Celestron. Over 40 Years Of Telescope History

INNOVATION

C8 • Whirlpool Galaxy • Image courtesy of Sebastian Voltmer

TELESCOPE TECHNOLOGIES

NexRemote

™

Remote Control Software

Celestron has been in the forefront of computerized telescope

technology for over two decades. We have taken this expertise

in telescope technology one step further by introducing the

NexRemote™ Telescope Remote Control Software. NexRemote

allows the user to control their Celestron computerized telescope

from their personal computer. Every function that is normally done using the

telescope’s hand control can now be duplicated remotely from a PC or laptop. This

software was developed for Celestron’s telescopes that use the NexStar control

system. These include the NexStar SLT Series, Advanced Series, CPC Series and

CGE Series (NexRemote ships standard with CPC and CGE Series models).

NexRemote provides full emulation of every aspect of the Celestron Computerized

Hand Control including functions such as:

• All telescope alignment options

• Access to the database of objects

• User objects

• Hibernation

• Integration with popular planetarium programs

NexRemote has additional powerful new features that include:

• NexRemote voice output - Allows you to keep your eyes on the stars instead of

the LCD by enabling speech support.

• Select the objects you want to see and the order that you want to see them.

• Create and save custom tours using the NexTour feature.

• Reduce the effect of the laptop screen illumination on your eyes

using Night Vision Mode.

• Wireless control of the telescope with optional game pad support.

• Use your personal GPS device to interface with NexRemote using NexGPS™.

• Download the latest NexRemote updates online.

Contact your Celestron dealer to find out availability of upgraded models that

include NexRemote. NexRemote software comes with a RS-232 cable to connect

your Celestron telescope to a PC. The software can be also be purchased

separately as a kit from an Authorized Celestron Dealer (Item #93710). The kit

includes the NexRemote software and license, a RS-232 cable, and a Serial-to-

USB adapter.

StarBright

XLT — An Optical System Breakthrough!

Celestron has elevated its renowned StarBright

technology to an even higher level of light transmission

with the introduction of our optional StarBright

XLT

High Performance Optical System.

One of the most important factors in the evaluation of

a Schmidt-Cassegrain telescope’s optical system performance is

its transmission — the percentage of incoming light that reaches the

focal plane. The design of the XLT System accomplishes two crucial

objectives — 1. To develop a coating system that is optimized for visual

use and, 2. To optimize the coating system and optics for

CCD/Photographic imaging.

The StarBright

XLT High Performance Optical System design consists of:

1. Unique enhanced multi-layer mirror coatings

Our mirror coatings are made from precise layers of Aluminum (Al),

SiO

(Quartz), TiO

(Titanium Dioxide), and Si0

. Reflectivity is fairly flat

across the spectrum, optimizing it for both CCD imaging and visual use.

2. Multi-layer anti-reflective coatings

Made from precise layers of MgF

(Magnesium Fluoride), and HfO

(Hafnium Dioxide), which costs nearly $2000 per kilogram, Hafnium

results in a wider band pass than Titanium, used in competitive

coatings.

3. High Transmission Water White glass

Our Schmidt-Cassegrain optical systems with optional StarBright

XLT

coatings use Water White glass instead of Soda Lime glass for the

corrector lens. Water White glass transmits about 90.5% without anti-

reflective coatings. That is 3.5% better transmission than uncoated

Soda Lime glass. When Water White glass is used in conjunction with

StarBright

XLT's anti-reflective coatings, the average transmission

reaches 97.4% — an 8% improvement!

These three components of our StarBright

XLT coatings result in one

of the finest coatings available. The peak transmission for the systems

is 89% at 520 nm. The overall system transmission is 83.5% averaged

over the spectrum from 400 to 750 nm.

Introducing Celestron's Revolutionary SkyAlign

Pick three stars, any stars…

Aligning your telescope is easier and faster than ever.

Simply input the date, time and your location (GPS

models obtain all this information automatically) and

then point the telescope at three bright stars of your

choosing. You do not need to know the names of the

stars — you could even pick the moon or bright planets! The NexStar

computer system will figure out which stars were chosen and then align

the telescope. SkyAlign is standard with NexStar SLT and CPC models.

There is no need to point the telescope north or to level the optical tube.

The initial position of the telescope is irrelevant. This makes for a fast

and very easy method for aligning the telescope.

How does it work?

The NexStar

software with SkyAlign calculates the angles measured

between the objects and then compares them to the known angles

between objects. Using this method, the telescope determines what

objects were chosen. The display will tell you which three objects you

aligned to for confirmation.

CN16 GPS Accessory Kit

The CN16 will automatically establish your location by

downloading the exact time, date, longitude, and latitude

from one of many global positioning satellites orbiting the

Earth. The CN16 plugs into your telescope’s base Aux port

and adds an extra element of simplicity, convenience, and

accuracy to your stargazing.

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

StarBright

XLT

COATINGS

CN16

GPS Accessory

News “Flash” — Upgradeable Hand Controls!

Available with NexStar SLT, CPC and C20 Astrograph Telescopes…

The wait is over. The latest NexStar Computerized Control System is now

completely upgradeable using flash technology.

Users can download the latest firmware for their telescopes directly from

Celestron's website and ensure that their telescope is always on the cutting

edge of technology.

TELESCOPE BASICS

C14 • Dumbbell Nebula • Image courtesy of Ted Inoue

TELESCOPE CHARACTERISTICS

This section looks at the separate component parts of a telescope. This will help

you in making important decisions when selecting a telescope model. This section

also discusses the uses of a telescope for astronomy or terrestrial (land viewing)

use. It is important to read this section if you aren't sure which Celestron

telescope product is right for you.

What Is A Telescope?

A telescope is, simply, a light collector. Its main task is to form the brightest

possible optical image of the object on which it is focused. This task is

accomplished by the primary optical element, called the “primary” or “objective”

inside the telescope’s optical tube. “Primary” usually refers to the mirror in a

reflecting telescope while “objective” refers to the main lens of a refracting

telescope. The image formed by the primary is then magnified by a removable

component called an eyepiece. By using different eyepieces, you can change the

magnification and the field of view of what you see through the telescope.

When comparing telescopes, there are a number of characteristics that can help

identify their differences. The most common ones are: Light Gathering Power,

Limiting Magnitude, Resolution, and Magnification. No matter what types of optical

designs you compare, these characteristics provide valuable information that will

help you determine what you can expect to see through a telescope.

Light Gathering Power

The most important characteristic of a telescope is its light gathering ability.

The light gathering capability of a telescope is determined by the diameter of its

aperture. The larger the aperture, the more light it collects. When looking at a star,

nebula, or galaxy it’s especially important that as much light be gathered as

possible. Fainter celestial objects may be invisible to smaller aperture telescopes.

Without enough light, dim objects cannot be seen, no matter how much they

might be magnified!

The relationship between a telescope’s light gathering power and the diameter of

its lens or mirror is not directly proportional. As the diameter gets larger, the

amount of light gathered increases by the square of the diameter. So if you double

the diameter of the primary lens, its light gathering ability increases by four times!

To calculate the light collecting area:

Light Collecting Area =π

(where π= 3.1416 and r = the radius of the primary

For an 8” primary: Light Collecting Area = 3.1416 x 4

= 50.24 square inches

For an 4” primary: Light Collecting Area = 3.1416 x 2

= 12.56 square inches

Limiting Magnitude

Astronomers use a system of “magnitudes” to indicate the brightness of a stellar

object. An object is said to have a certain numerical magnitude with 0 (the star

Vega ) as the baseline. The larger the magnitude number, the fainter the object.

Each magnitude is a difference in brightness by a factor of 2.51 times. For

example, a star that is considered 5th magnitude is 100 times fainter than Vega,

a zero magnitude star (2.51

). The faintest star you can see with your unaided eye

is about sixth magnitude (from dark skies) whereas the brightest stars are

magnitude zero (or even a negative number).

The faintest star you can see with a telescope (under excellent seeing conditions)

is referred to as the “limiting magnitude”. The limiting magnitude of a telescope

is directly related to aperture. Larger apertures allow you to see fainter objects.

A rough formula for calculating the visual limiting magnitude of any telescope is:

7.5 + 5 LOG (aperture in cm). For example, the limiting magnitude of an 8”

(20.32cm) aperture telescope is 14.0.

Limiting Magnitude =7.5 + 5 LOG 20.32 = 7.5 + (5x1.3) = 14.0.

Atmospheric conditions and the visual acuity of the observer will often reduce

limiting magnitude.

Resolution

Resolution is the ability of a telescope to render fine detail. Higher

resolution lets you see more detail on the surface of a planet or

separate stars that are close together. Resolution is measured in terms

of degrees of arc (called degrees), minutes of arc (called arcminutes),

and seconds of arc (called arcseconds). Thus, something that spans

one degree of arc is also 60 arcminutes, or 3600 arcseconds (60 x

60). So, something that is one arcsecond is very small — only

1/3600th of a degree.

Resolution for a given telescope is calculated using the formula:

Resolution = ((1.22 x l ) / D) x 206265 where resolution is in

arcseconds, “l” is the wavelength of light (.00055mm for common

visible wavelengths), “D” is the diameter of the primary in millimeters

and 206265 is the number of arcseconds in one Radian.

Magnification

Magnification is frequently referred to as “power” and is a function

of the focal lengths of both the primary and the eyepiece. The focal

length is the distance from the primary lens or mirror to the point

where an image is formed. The eyepiece magnifies the image formed

by the primary.

The highest magnification you can reasonably achieve with your

telescope is once again determined by the size and light gathering

ability of the primary. The practical limit is about 60 times the diameter

of the primary in inches. So, an 8” telescope should not be expected

to produce reasonable images if the telescope/eyepiece combination

produces a magnification greater than 480x. In practice, the amount

of magnification that can be used will often be reduced by

atmospheric conditions.

Since many astronomical objects are relatively large but faint,

moderate magnification and a larger diameter primary to gather light

is the best combination for viewing most celestial objects. When

looking at stars, high power is of little use since they always look like

pinpoints (stars are so far away they can not be resolved as anything

other than a pinpoint).

To calculate magnification:

(Focal Length of Primary in mm)

Magnification = —————————————

(Focal Length of Eyepiece in mm)

So, for a 8” SCT using a 25mm eyepiece:

Magnification = 2000/25 = 80 times the power of the unaided eye.

The Mount and Tripod

To a large extent, a telescope is only as good as its tripod and mount.

A telescope magnifies everything, including vibration. That’s why many

telescopes with good optics are rendered useless when supplied on an

inexpensively made mount. Since you’ll be using a mount’s controls to

track the slow and steady apparent movement of the stars, a suitable

mount’s adjustments should be smooth, yet precise.

Altazimuth vs. Equatorial

There are two basic types of mounts: Altazimuth (Alt-Azimuth) and

Equatorial. Altazimuth mounts are the simplest type of mount with two

motions: altitude (up and down/vertical) and azimuth (side-to-

side/horizontal). Good Altazimuth mounts will have slow motion cable

controls to make precise adjustments, which aid in keeping tracking

motion smooth.

TELESCOPE BASICS

MOUNT AND TELESCOPE TYPES

Altazimuth vs. Equatorial (cont.)

These type mounts are good for terrestrial observing and for scanning

the sky at lower power but are not advised for deep sky photography.

Both Altazimuth and Equatorial mounts can track the stars sufficiently

for visual use, however, only equatorials can be used for long exposure

astrophotography. Since Altazimuth mounts are not aligned with the

Earth’s axis, they must use both axes to track an object. With Altazimuth

mounts you will be able to accurately track an object centered in the

field of view, however over time all the other stars in the field will

appear to rotate around the center of the field. This is hardly noticeable

in an eyepiece, but is obvious on film.

Altazimuth Advantages

• Easy to setup and use

• Least expensive type of mount

• Ideal for terrestrial observing

Altazimuth Disadvantages

• Cannot be used for long

exposure photography

• Non-computerized models cannot

track stars and planets

On an Equatorial mounting, the two axes are perpendicular to each

other as they are on an Altazimuth mount. But on an Equatorial

mounting, the left-to-right axis has been tilted so that it is parallel to the

Earth’s axis instead of at the horizon. On an Equatorial mount, only the

axis that is parallel to the Earth’s axis, needs to be rotated. On an

Altazimuth mount, BOTH axes must be moved.

If you would like to do long exposure photography, the telescope must

be mounted on an equatorial mount. Some Celestron telescopes that

are on Altazimuth mountings can be tilted up (with the use of an

equatorial wedge) to orient the azimuth axis parallel to the Earth’s axis.

Equatorial Advantages

• Best for long exposure photography

• Easy to use visually because only one

axis movement compensates for

Earth’s rotation

• Setting circles on non-computerized

models help locate astronomical

objects

Equatorial Disadvantages

• Set-up is more extensive because of polar alignment requirements

• Not suitable for terrestrial use

Do you want a GoTo computerized telescope?

Many Celestron telescopes are computerized “GoTo” telescopes. GoTo

capability is very useful for the novice who needs assistance in finding

objects in the night sky. Since there is a large database of celestial

objects, it is unnecessary to refer to star charts to identify objects.

Once the telescope is properly aligned and an object is selected, the

telescope will automatically “go to” the object. GoTo equipped Celestron

telescopes include both altazimuth and equatorial models. Even without

GoTo, many Celestron equatorial scopes have manual setting circles

that allow you to find objects in the sky with the help of a good

star map.

There are a number of factors to consider when selecting a particular telescope.

These factors will usually depend on your individual requirements including cost,

portability, versatility, usability and appearance. You should also consider how you

plan to use the instrument both now and in the future. Most important, consider

your budget and portability requirements, and select a telescope with the largest

aperture possible.

Types of Telescopes

Refractor Telescope

A refractor telescope uses a lens as the primary. The lens at the front of the

telescope bends the light passing through it until it comes to a single point

called the “focal plane”.

The long, thin tubes of refractor telescopes look much the same as those Galileo

used centuries ago. High quality optical glass and multi-coatings provide today’s

sky watchers views Galileo never dreamed of. The refractor type of telescope is

very popular with individuals who want mechanical simplicity, rugged reliability

and ease of use. Because the focal length is limited by the length of the tube,

refractor telescopes become quite bulky and expensive beyond a four inch

aperture. This limits the light gathering properties of refractor telescopes, but it

is an excellent choice for beginners and those who prefer simple operation and

versatility. Refractor telescopes are also a popular choice because of their

unobstructed view, high contrast and good definition.

Refractor Advantages:

• Easy to set up and use

• Simple and reliable design

• Little or no maintenance

• Excellent for lunar, planetary and binary star observing especially in larger

apertures

• Good for terrestrial viewing

• High contrast images with no secondary mirror or diagonal obstruction

• Color correction is good in achromatic designs and excellent in apochromatic

and fluorite designs

• Sealed optical tube reduces image-degrading air currents and protects optics

• Objective lens is permanently mounted and aligned

Refractor Disadvantages

• More expensive per inch of aperture than Newtonians or Catadioptrics

• Heavier, longer and bulkier than equivalent aperture Newtonians and

Catadioptrics

• The cost and size factors limit the practical maximum size primary to smaller

apertures

• Some color aberration in achromatic designs (doublet)

C8 • Moon • Image courtesy of Sebastian Voltmer

TELESCOPE BASICS

C14 • Horsehead Nebula • Image courtesy of Richard Hedrick

TELESCOPE TYPES

Newtonian Reflector Telescope

A Newtonian reflector uses a single

concave mirror as its primary. Light

enters the tube traveling to the

mirror at the back end. Light is then

“bent” forward in the tube to a

single point, its focal plane. A flat

mirror called a “diagonal” intercepts

the light and points it out the side of

the tube at right angles to the tube

through the eyepiece. The eyepiece is placed there for easy viewing.

Newtonian Reflector telescopes replace heavy lenses with mirrors to collect and

focus the light, providing much more light gathering power for the money. You can

have focal lengths up to 1000mm and still enjoy a telescope that is relatively

compact and portable. Newtonian Reflector telescopes do require more care and

maintenance because the primary mirror is exposed to air and dust. However, this

small drawback does not hamper this type of telescope’s popularity with those

who want an economical telescope that can still resolve faint, distant objects.

Newtonian reflectors produce a “right-side-up image” but the image will appear

rotated based on the location of the eyepiece holder in relation to the ground.

Newtonian reflectors are best for astronomical use where right-side-up does

not matter.

Newtonian Advantages

• Lowest cost per inch of aperture compared to Refractors and Catadioptrics since

mirrors can be produced at less cost than lenses in medium to large apertures

• Reasonably compact and portable up to focal lengths of 1000mm

• Excellent for faint deep sky objects such as remote galaxies, nebulae and star

clusters due to the generally fast focal ratios (f/4 to f/8)

• Adequate for lunar and planetary work

• Good for deep sky astrophotography (but not as convenient and more difficult to

use than Catadioptrics)

• Free of color aberration due to the use of a primary mirror

Newtonian Disadvantages

• Generally not suited for terrestrial applications

• Slight light loss due to secondary (diagonal) obstruction when compared

with Refractors

Catadioptric Telescopes

Catadioptrics use a combination of mirrors and lenses to “fold” (reflect) the light

path and form an image. There are two popular designs: the Schmidt-Cassegrain

and the Maksutov-Cassegrain. In a Schmidt-Cassegrain, the light enters through

a thin aspheric Schmidt correcting lens. It then strikes the spherical primary mirror.

It is reflected back up the tube and intercepted by a small secondary mirror which

reflects the light out an opening in the rear of the instrument where the image is

formed at the eyepiece. Catadioptrics are the most popular and most modern type

of telescope optical design and are marketed throughout the world in 3.5” and

larger apertures.

Catadioptric telescopes combine the practical advantages of lenses and mirrors

while eliminating their disadvantages. They offer the clarity and contrast of

refractors with the low aberration of reflectors. Catadioptrics have an average focal

ratio of f/10 which is wide enough for all types of photography. They are also

easier to maintain because all optical elements are solidly mounted and rigidly

collimated. Catadioptric telescopes provide the best possible combination of light

gathering power, long focal length, portability and affordability.

Schmidt-Cassegrain Advantages

• Best all-purpose

telescope design

• Combines the

optical advantages

of both lenses and

mirrors while

eliminating their

disadvantages

• Excellent optics and

razor sharp images over a wide field

• Excellent for deep sky observing and astrophotography

• Very good for lunar, planetary and binary star observing

• Excellent for terrestrial viewing and photography

• Focal ratio generally around f/10

• Closed tube design reduces image-degrading air currents

• Extremely compact and portable

• Easy to use

• Durable and virtually maintenance free

• Large apertures at reasonable cost and less expensive than

equivalent aperture refractors

• Most versatile type of telescope

• More accessories available than with other types of telescopes

• Best near focus capability of any type of telescope

Schmidt-Cassegrain Disadvantages

• More expensive than Newtonians of equal aperture

• Slight light loss due to secondary mirror obstruction compared

to refractors

Maksutov-Cassegrain Telescopes

The Maksutov-Cassegrain is similar to the Schmidt-Cassegrain with

essentially the same advantages and disadvantages. It uses a thick

meniscus correcting lens with a strong curvature and a secondary

mirror that is usually an aluminized spot on the corrector. The Maksutov

secondary mirror is typically smaller than the Schmidt’s which gives it

slightly better resolution for planetary observing.

Advantages of Maksutov-Cassegrain Compared

to Schmidt-Cassegrain

• Smaller secondary

obstruction results

in a slight increase

in planetary detail

and contrast

• Less expensive to

manufacture

• Longer focal

lengths resulting in higher magnifications for planetary viewing

Disadvantages of Maksutov-Cassegrain Compared

to Schmidt-Cassegrain

• Slightly heavier because of the thick meniscus correcting lens

• Increased time to reach thermal stability in larger apertures

over 90mm

• Longer focal lengths resulting in smaller field of views

TELESCOPES

FirstScope Series

StarHopper Series

NexStar SLT Series

Advanced Series

CPC Series

CGE Series

C20 Astrograph

The Celestron FirstScope Series was

designed with the first-time telescope

buyer in mind.

Offering exceptional value, these scopes feature

compact and portable designs with ample optical

performance to excite any newcomer to the world

of amateur astronomy. Each telescope has its own design

characteristics to help you choose which is best for you. The

smaller FirstScopes feature refractor optical designs while the

larger aperture models feature Newtonian reflector optical systems.

Standard Features and Accessories Include:

• All coated glass optics for clear, crisp images

• Rugged pre-assembled aluminum tripod for increased sturdiness

• StarPointer™ advanced red dot LED finderscope for accurately locating

celestial objects

• Choice of German Equatorial mount with setting circles and slow motion

adjustment controls or Altazimuth mount with slow motion control

• Quick and easy no-tool setup

• Deluxe accessory tray for convenient storage of accessories

•1

/4” eyepieces for wider fields of view and increased

magnification power

• “The Sky” Level 1 planetarium software with 10,000 object database and

enhanced images

FirstScope 114EQ

Which FirstScope model best fits your needs?

If you’re looking for a dual-purpose telescope appropriate for both

terrestrial and celestial viewing, then a refractor model is for you.

Refractors produce bright, clear images of the Moon and planets

as well. It is easy to see the moons of Jupiter and the rings of Saturn

with every one of these fine instruments. For views of the brighter

deep space objects like galaxies and nebulae, we recommend the

larger aperture and light gathering ability of the Newtonian reflectors.

If your interest is strictly watching whales, spotting birds, or viewing

nature, altazimuth-mounted models are ideal. A model featuring a

German Equatorial mount is a good choice for viewing stars, nebulae,

star clusters, and planets

When used for astronomical viewing, FirstScopes yield breathtaking

views of the Moon, Saturn with its ring structure, Jupiter and its belts

and moons, nebulae and star clusters. Add an optional solar filter,

and you can observe activity on the Sun.

Every instrument features all glass optical elements as well as

smooth operating aluminum tripod mountings featuring slow motion

controls on most models. Refractor models feature coated optics for

enhanced image brightness and clarity. There are FirstScope models

that use altazimuth mountings suitable for terrestrial as well as

astronomical viewing.

Equatorial models are intended for astronomical use only. Adding

a motor drive that moves one axis to compensate for the Earth’s

rotation can enhance equatorial mounts. When properly aligned, the

motor keeps objects in the field of view for longer periods without

having to move the telescope by hand. Alignment also improves the

accuracy of the setting circles. Setting Circles are used to locate

objects by means of coordinates found in optional star charts.

Every FirstScope model features Celestron’s commitment to quality

and design features.

FIRSTSCOPE SERIES

FIRSTSCOPE SERIES FEATURES AT A GLANCE

C11 • Lunar Eclipse • Image courtesy of Jose Suro

Locate and identify thousands of

celestial objects on your laptop

or PC with “The Sky” Level 1

software included FREE with

every FirstScope model.

FIRSTSCOPE SERIES

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Weight

60AZ 21052 60mm (2.4”) Refractor 700mm f/12 20mm (35x), 10mm (70x) StarPointer

™

Altazimuth 7 lbs

60EQ 21067 60mm (2.4”) Refractor 900mm f/15 20mm (45x), 10mm (90x) StarPointer

™

Equatorial 11 lbs

70EQ 21076 70mm (2.8”) Refractor 900mm f/13 20mm (45x), 10mm (90x) StarPointer

™

Equatorial 17 lbs

76EQ 31032 76mm (3”) Reflector 700mm f/9 20mm (35x), 10mm (70x) StarPointer

™

Equatorial 15 lbs

90AZ 21084 90mm (3.5”) Refractor 1000mm f/11 20mm (50x), 10mm (100x) StarPointer

™

Altazimuth 19 lbs

90EQ 21085 90mm (3.5”) Refractor 1000mm f/11 20mm (50x), 10mm (100x) StarPointer

™

Equatorial 22 lbs

114EQ 31044 114mm (4.5”) Reflector 900mm f/8 20mm (45x), 10mm (90x) StarPointer

™

Equatorial 19 lbs

114EQ Compact 31041 114mm (4.5”) Reflector 1000mm f/9 20mm (50x), 10mm (100x) StarPointer

™

Equatorial 16 lbs

For complete specifications and product information, visit: www.celestron.com

FirstScope

60AZ

NexStar 4 • Moon • Image courtesy of Mario Mariani

FIRSTSCOPE SERIES SPECIFICATIONS

NEW!

FirstScope

60EQ

FirstScope

70EQ

FirstScope

76EQ

FirstScope

90AZ

FirstScope

90EQ

FirstScope

114

FirstScope

114 Compact

Standard Features and Accessories Include:

• Adjustable roller track bearing on the azimuth surface provides

a smooth motion

• Variable tension clutch system for proper balance and control

in both altitude and azimuth

• Optical quality BK7 annealed glass provides better thermal

expansion properties than standard plate glass mirrors

• Built-in cooling fan improves mirror cooling time and reduces damaging

tube currents (for StarHopper 10" and 12" models)

• 9-point flotation mirror cell gives equal support of the primary mirror

to minimize mirror deflection (for StarHopper 12" model)

• Quick release finder bracket with spring loaded pivot and x-y

adjustments

• Carrying handle and eyepiece holder for convenience

STARHOPPER



SERIES

STARHOPPER SERIES FEATURES AT A GLANCE

C11 • Saturn • Image courtesy of Damian Peach

StarHopper 10

The StarHopper

Configuration is

a Newtonian Optical

Tube Mounted on an

Altazimuth Mount.

This optical system is characterized by

a large primary mirror at the bottom of

the tube which collects light and

concentrates it onto a small secondary

mirror. The light is then reflected out the side

of the tube and into the eyepiece. Best of all,

StarHopper Dobsonians are easy to observe with. The user

navigates through the night sky by simply moving the tube up or down,

or side to side, by hand.

All Celestron StarHoppers use optical quality BK-7 glass. This is the same

high-quality glass used in most binocular prisms and refractor telescope

lenses. All StarHoppers use a roller track bearing on the azimuth surface

providing dozens of support points for smooth swivel motion. They also

use a variable tension clutch system for proper balance and control in

both altitude and azimuth. The 10" & 12" StarHoppers have cooling fans

built into the rear cell to decrease cooling times.

The 8", 10" and 12" models come standard with 2" focuser and 1.25"

adapter. The 10" & 12" models come standard with a 32mm 2" eyepiece.

12" StarHoppers use a 9-point flotation mirror cell for equal support of the

primary mirror.

10" & 12" StarHoppers have

cooling fans built-in to the rear cell

to decrease cooling times.

Celestron’s StarHopper series of Dobsonian telescopes

are available in 6", 8", 10" and 12" apertures. Dobsonian

telescopes are recognized by amateur astronomers as an

excellent value for the aperture size, and our StarHopper line

is as rich in features as it is in value.

StarHopper 12

STARHOPPER



SERIES

Model Item # Primary Mirror Type Focal Length Eyepieces Finderscope Focuser

StarHopper 6 10600 6” Dobsonian 48” 25mm-1

/4” 6x30 1

/4”

StarHopper 8 10800 8” Dobsonian 48” 25mm-1

/4” 9x50 2” with 1

/4” adapter

StarHopper 10 10110 10” Dobsonian 50” 32mm E-Lux

™

2” 9x50 2” with 1

/4” adapter

StarHopper 12 10112 12” Dobsonian 60” 32mm E-Lux

™

2” 9x50 2” with 1

/4” adapter

For complete specifications and product information, visit: www.celestron.com

C11 • Jupiter • Image courtesy of Damian Peach

STARHOPPER SERIES SPECIFICATIONS

StarHopper 10

StarHopper 6

StarHopper 8

Standard Features and Accessories Include:

• Computerized hand control with 4,000+ object database

• Quick-release fork arm mount, optical tube and accessory tray for quick

no tool set up

• SkyAlign allows you to align on any three bright celestial objects, making

for a fast and easy alignment process

• Comes with “The Sky” Level 1 planetarium software and NSOL telescope

control software for controlling your telescope via computer

• Internal battery compartment to prevent cord wrap during use

• Sturdy stainless steel tripod

• StarPointer finderscope to help with alignment

• Auxiliary port for additional accessories such as GPS accessory

• Motorized altazimuth mount and fully computerized hand control

• U.S. and International city database to easily set your location

• Flash upgradeable hand control software and motor control units

NEXSTAR



SLT SERIES

NEXSTAR SLT SERIES FEATURES AT A GLANCE

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

Compatible with:

The completely new NexStar series....

Designed to be an affordable entry level to mid-level

computerized GoTo telescope,the NexStar SLT

refractors and reflectors are available in the most

popular sizes and are loaded with valuable design

features. With pre-assembled, adjustable stainless

steel tripods, and quick release fork arms and

tubes, NexStar SLT telescopes can be set up

in a matter of minutes — with no tools required!

You can see details of the lunar surface, Venus

and its phases, Mars resolved as an orange disc,

Jupiter and its four moons, Saturn with its rings plainly

visible and much more! Most NexStar SLT's can also be used

as a land-based spotting telescope.

Intelligent Design

AC adapter (#18773) these NexStar GoTo's love to travel.

The internal battery compartment provides power to the high

precision servo motors for rigid low-vibration performance

while eliminating cord wrap issues associated with external

battery packs.

With the NexStar's ergonomically-designed hand control,

the user is free to remove the hand control from its holder

for remote use or leave it cradled for hands-free operation.

With a touch of a button you can select the object catalog,

change the slew speed, view fascinating information about

an object, or simply know if a desired object is visible in

the sky.

Celestron's Revolutionary SkyAlign

Using Celestron's patented SkyAlign* (patent pending), simply

input the date, time and location into the hand control then

slew the telescope to any three bright celestial objects in the

sky. You do not need to know the names of the stars — you

could even pick the moon or bright planets!

*For more information on SkyAlign, see information on page 2

C5 • Solar Eclipse • Image courtesy of Jason Fournier

NexStar 130 SLT

NexStar

102 SLT

NexStar

114 SLT

NEXSTAR



SLT SERIES

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Weight

60 SLT 22076 60mm (2.4”) Refractor 700mm f/12 25mm (28x), 9mm (78x) StarPointer

™

Altazimuth 9.5 lbs

80 SLT 22086 80mm (3.1”) Refractor 900mm f/11 25mm (36x), 9mm (100x) StarPointer

™

Altazimuth 14 lbs

102 SLT 22096 102mm (4”) Refractor 660mm f/6.5 25mm (26x), 9mm (73x) StarPointer

™

Altazimuth 14 lbs

114 SLT 31143 114mm (4.5”) Reflector 1000mm f/9 25mm (40x), 9mm (111x) StarPointer

™

Altazimuth 15 lbs

130 SLT 31145 130mm (5”) Reflector 650mm f/5 25mm (26x), 9mm (62x) StarPointer

™

Altazimuth 18 lbs

For complete specifications and product information, visit: www.celestron.com

NexStar

60 SLT

NexStar

80 SLT

NEXSTAR SLT SERIES SPECIFICATIONS

NexStar

130 SLT

NEW!

C102 • Rosette Nebula • Image courtesy of Frederic Caron

The Advanced Series family of computerized GoTo and non-computerized

telescopes was designed to offer the novice or more advanced user a selection of

models with the features and quality that serious amateurs can appreciate. These

scopes come on heavy-duty German Equatorial mounts with ultra-sturdy 2"

stainless steel legs and center tray for superior rigidity and vibration dampening.

The Advanced Series comes in refractor, reflector, Maksutov-Cassegrain and

Schmidt-Cassegrain models. The refractor models range from a 3" (80mm) to an

impressive 6" aperture and include our NEW 80ED and 100ED refractors. For even

more light gathering power there are 6", 8" and 10" Newtonian Reflectors. We

added a 5” Maksutov-Cassegrain with our NEW C130 model. There are also 8",

/4" and our NEW 11” Schmidt-Cassegrain optical designs that feature

Celestron's precision matched and hand-figured optical systems.

GoTo Convenience and GPS Compatibility

For Precision Accuracy

We are proud to offer the GT versions of the Advanced Series on

a computerized GoTo version of Celestron's sturdy CG-5 mount.

Couple this solidly-built mount with the included NexStar

computerized control system to utilize many of the same functions

and features as Celestron's most advanced GoTo telescopes. GoTo

models are also upgradeable to GPS with the optional CN16 GPS

Accessory (#93966). This accessory allows your telescope to pinpoint

your location on the Earth, the date and time, and makes the

alignment process faster and easier than ever before! These GoTo

versions of the Advanced Series also come loaded with new software

features and over 40,000 database objects. Capable of holding over

35 lbs of payload and slewing at 3º per second, you will be able

to instantly point to any of the celestial objects in the database.

Advanced

C11-SGT

CG-5 Mount —

Precision Engineered

For Stability

Our new CG-5 German Equatorial mount

has precision worm gears on both axes

for extremely smooth operation. The key

component that makes this system the

most stable in its class is the heavy-

duty tripod. It features larger and more

substantial legs that offer excellent damping characteristics for more

stable views. The CG-5 also has a convenient latitude scale for easier

alignment and an optional polar finderscope for the ultimate in

precision alignments.

Options Available On Selected Advanced Models

See product specifications for applicable models.

ADVANCED SERIES

Auxiliary Port Accessory Kit

The Auxiliary Port Accessory (Item #93965)

was designed to expand your Advanced GT's

ability to interface with multiple devices

including personal computers and the

Celestron CN16 GPS accessory. The Auxiliary

Port Accessory has a PC port which allows the

user to download and update motor control

firmware from the internet. It has two auxiliary

ports, one for the NexStar Hand Control and

one for the CN16 GPS accessory.

Note: The Auxiliary Port Accessory comes standard in the CN16 GPS Accessory Kit

for the Advanced GT Series (#93966). The Programming Cable is NOT included in the

CN16 GPS Accessory Kit for the Advanced GT Series.

C8 • Andromeda Galaxy • Image courtesy of Sebastian Voltmer

StarBright

XLT

COATINGS

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

CN16

GPS Accessory

C8 • Andromeda Galaxy • Image courtesy of Sebastian Voltmer

Standard Features and Accessories Include:

• Computerized or non-computerized CG-5 German Equatorial Mount

(CG-4 with C4-R and C6-N)

• CG-5 Mount features precision worm gears on both axes for extremely

smooth tracking and slewing

• CG-5 Mount uses large shafts and bearings and substantial base castings

for additional stability

• Ultra sturdy adjustable tripod with 2” stainless steel legs

• 2” focuser that allows use of 2” eyepieces on C6-R, C6-R GT, C8-N,

C8-N GT, C10-N, C10N GT, C80ED, C80ED-RGT, C100ED, C100ED-RGT

• “The Sky” Level 1 software

Computerized GT Model Features Include:

• 40,000+ object database

• DC servo motors with encoders on both axes

• Hand control with double line, 16 character LCD display; red night vision

backlighting

• RS-232 communication port on hand control; Auxiliary Port and

Autoguider port on motor drive

ADVANCED SERIES

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Computerized Weight

C80ED-R 21021 80mm (3.1”) Refractor 600mm f/7.5 20mm (30x) 6x30 CG-5 No 42 lbs

C80ED-RGT 21022 80mm (3.1”) Refractor 600mm f/7.5 20mm (30x) 6x30 CG-5 Yes 42 lbs

C100ED-R 21026 100mm (4”) Refractor 900mm f/9 20mm (45x) 9x50 CG-5 No 50 lbs

C100ED-RGT 21027 100mm (4”) Refractor 900mm f/9 20mm (45x) 9x50 CG-5 Yes 50 lbs

C4-R 21016 102mm (4”) Refractor 1000mm f/10 20mm (50x) 6x30 CG-4 No 36 lbs

C130-M 31063 130mm (5”) Maksutov 2000mm f/15 32mm (63x) 10x50 CG-5 No 51 lbs

C130-MGT 31064 130mm (5”) Maksutov 2000mm f/15 32mm (63x) 10x50 CG-5 Yes 51 lbs

For complete specifications and product information, visit: www.celestron.com

Advanced

C4-R

ADVANCED SERIES FEATURES AT A GLANCE

C8 • Swan Nebula • Image courtesy of Sebastian Voltmer

ADVANCED SERIES SPECIFICATIONS

Advanced

C130-MGT

Computerized

Advanced

C80ED-R

Advanced

C100ED-R

NEW!

ADVANCED SERIES

C11 • Orion Nebula • Image courtesy of Sebastian Voltmer

Advanced

C8-SGT

Computerized

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Computerized Weight

C6-N 31056 150mm (6”) Reflector 750mm f/5 20mm (38x) 6x30 CG-4 No 35 lbs

C6-N-HD 31053 150mm (6”) Reflector 750mm f/5 20mm (38x) 6x30 CG-5 No 54 lbs

C6-NGT 31054 150mm (6”) Reflector 750mm f/5 20mm (38x) 6x30 CG-5 Yes 54 lbs

C6-R 21019 150mm (6”) Refractor 1200mm f/8 20mm (60x) 9x50 CG-5 No 68 lbs

C6-RGT 21020 150mm (6”) Refractor 1200mm f/8 20mm (60x) 9x50 CG-5 Yes 68 lbs

C8-N 31061 200mm (8”) Reflector 1000mm f/5 20mm (50x) 9x50 CG-5 No 67 lbs

C8-NGT 31062 200mm (8”) Reflector 1000mm f/5 20mm (50x) 9x50 CG-5 Yes 67 lbs

C8-S 11025 203mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CG-5 No 54 lbs

C8-S (XLT) 11025-XLT 203mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CG-5 No 54 lbs

C8-SGT 11026 203mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CG-5 Yes 54 lbs

C8-SGT (XLT) 11026-XLT 203mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CG-5 Yes 54 lbs

ADVANCED SERIES SPECIFICATIONS

Advanced

C8-NGT

Computerized

Advanced

C8-S

Advanced

C6-N

Advanced

C6-RGT

Computerized

Advanced

C6-NGT

Computerized

ADVANCED SERIES

C8 • Andromeda Galaxy • Image courtesy of Sebastian Voltmer

For complete specifications and product information, visit: www.celestron.com

Advanced

C10-NGT

Computerized

Advanced

C11-S

Advanced

C11-SGT

Computerized

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Computerized Weight

/4-S 11045 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CG-5 No 74 lbs

/4-S (XLT) 11045-XLT 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CG-5 No 74 lbs

/4-SGT 11046 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CG-5 Yes 74 lbs

/4-SGT (XLT) 11046-XLT 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CG-5 Yes 74 lbs

C10-N 11047 254mm (10”) Reflector 1200mm f/4.7 20mm (60x) 9x50 CG-5 No 93 lbs

C10-NGT 11048 254mm (10”) Reflector 1200mm f/4.7 20mm (60x) 9x50 CG-5 Yes 93 lbs

C11-S 11066 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CG-5 No 91 lbs

C11-S (XLT) 11066-XLT 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CG-5 No 91 lbs

C11-SGT 11067 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CG-5 Yes 91 lbs

C11-SGT (XLT) 11067-XLT 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CG-5 Yes 91 lbs

Advanced

/4-S

Advanced

/4-SGT

Computerized

ADVANCED SERIES SPECIFICATIONS

NEW!

Celestron Professional Computerized Series

(CPC) 8”, 9.25”, 11”

The telescopes of tomorrow are here today! New alignment

technology, advanced engineering, and a bold new design at a price

that is out of this world!

Celestron's new CPC Series with revolutionary SkyAlign Alignment

Technology re-defines everything that amateur astronomers are

looking for — quick and simple alignment, GPS, unsurpassed optical

quality, ease of set-up and use, ergonomics, enhanced

computerization and, most important, affordability.

Internal GPS

The CPC Series' internal GPS receiver automatically downloads

the date and time from orbiting satellites and pinpoints its

exact location on Earth. This eliminates the need for you to

manually enter the date, time, longitude and latitude.

Celestron's Revolutionary SkyAlign

Once the CPC's internal GPS has established the telescope's

position, aligning the telescope is as easy as 1-2-3! Simply

locate and manually point (slew) the telescope to three bright

celestial objects. You do not need to know the names of the

stars — you may even pick the moon or bright planets!

Celestron's NexStar

software technology will model the

night sky to determine the position of every star, planet and

celestial object above the horizon. Once aligned, the remote

hand control allows direct access to each of the celestial

catalogs in its user-friendly database.

Celestial Object Database

The CPC database contains over 40,000 celestial objects including

Messier objects, the Caldwell Catalog, as well as NGC Galaxies,

nebulae and planets. User-definable filter limits make navigating

through this expansive database quicker and easier. When using the

"filter limits" feature, only those objects that are above the horizon

are displayed for your exact date, time and location.

Innovative Features

The new CPC Series telescopes, like our acclaimed Advanced Series

and premium CGE Series telescopes feature meticulously matched

and hand-figured optical systems that are manufactured in our

facilities in Torrance, California. In addition, all CPC models are

available with optional StarBright XLT High Performance Optical

Coatings. With the introduction of the CPC Series, Celestron has

“gone back to the drawing board” and re-designed, re-engineered,

and re-invented a telescope family that provides superior quality,

unsurpassed ease of use, and incomparable value. All CPC models

ship standard with our NexRemote telescope control software.

CPC

™

SERIES

C8 • Eagle Nebula • Image courtesy of Sebastian Voltmer

CPC 800

StarBright

XLT

COATINGS

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

Features Available On Selected CPC Models

See product specifications for applicable models.

CPC

™

SERIES

Model Item # Aperture Type Focal Length Eyepieces Finderscope Coating Weight

CPC 800 11073 203mm (8”) Schmidt-Cassegrain 2032mm f/10 40mm (51x) 8x50 Starbright

61 lbs

CPC 800 (XLT) 11073-XLT 203mm (8”) Schmidt-Cassegrain 2032mm f/10 40mm (51x) 8x50 Starbright

XLT 61 lbs

CPC 925 11074 235mm (9.25”) Schmidt-Cassegrain 2350mm f/10 40mm (59x) 8x50 Starbright

77 lbs

CPC 925 (XLT) 11074-XLT 235mm (9.25”) Schmidt-Cassegrain 2350mm f/10 40mm (59x) 8x50 Starbright

XLT 77 lbs

CPC 1100 11075 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 8x50 Starbright

84 lbs

CPC 1100 (XLT) 11075-XLT 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 8x50 Starbright

XLT 84 lbs

For complete specifications and product information, visit: www.celestron.com

CPC FEATURES AT A GLANCE

C8 • Orion Nebula • Image courtesy of Sebastian Voltmer

CPC SPECIFICATIONS

• Re-designed drive base and drive mechanics — quiet operation; large drive gears, quick release clutch; Auxiliary ports for AutoGuider, PC; easily mounts

to tripod

• SkyAlign Alignment Technology — simply choose three bright celestial objects, the telescope does the rest

• Convenient remote hand control holder — allows you to view information hands-free while using the scope

• 40,000+ object database

• Flash upgradeable hand control software and motor control units

• Easy to locate over-sized clutching knobs on both axes for manual use

• All metal quick release finderscope bracket with spring loaded pivot and easy to use x-y adjustment screws

• Ultra-wide 9.8” bearing track drive base provides smooth stable tracking at any rate

• Ergonomic design — comfortably lift and move the telescope from location to location

• Permanent Periodic Error Correction (PEC)

• NexRemote™ Included

• Newly designed tripod: heavy-duty steel leg tripod with accessory tray/center leg support bracket for rock solid stability; spring-loaded mounting screws

and recessed mounting platform for quick setup

CPC 800

Rear View

The CGE series is Celestron’s line of observatory class Schmidt-Cassegrain

telescopes. Offered in 8", 9

/4", 11" and 14" apertures, all are mounted on

the state of the art CGE GoTo German Equatorial mount. The German

Equatorial mount has long been the favored choice of astronomy buffs and

astrophotographers because of its stability and portability. More stable

because the center of gravity is directly over the center of its base, and more

portable because it can be disassembled into smaller component parts for

easy storage and transportation. For astrophotography, the German Equatorial

mount offers easier balancing, unlimited space at the rear of the telescope

tube to mount a camera, and whole sky access. All CGE models ship standard

with our NexRemote telescope control software.

CGE 1400

In addition to being fully computerized with a database of over

40,000 celestial objects, the CGE German Equatorial mount offers

numerous design advantages:

Designed For Portability

Set up and transportation of the CGE telescopes is made easy

by separating the CGE instruments into individual, easy-to-carry

components. Unlike fork arm mounted telescopes, the CGE’s optical

tubes can be quickly removed from its mounts making even the CGE

1400 easily assembled by only one person.

Recognized For Superior Stability

German Equatorial mounts place the center of gravity directly over

the tripod legs making the system extremely stable. This proven

design reduces the “tuning fork” vibration that can be associated

with undersized fork mounts. An improved Super HD Tripod supports

the CGE mount. This fully extendable tripod is made from the finest

cold rolled carbon steel and can be raised to a height of 50". The

tripod uses a dual leg support for maximum rigidity with an upper leg

brace to provide an outward preload and a lower leg brace providing

inward tension.

CGE Equatorial Mounts Can Easily Be Balanced

In Both Axes

Balancing the weight of camera equipment and other visual

accessories is accomplished by simply sliding the counterweight

for Right Ascension and moving the optical tube along its dovetail

mounting for Declination. This means that no additional weight needs

to be added to balance the telescope when additional accessories

are added.

Clearance For Accessories

CGE mounts support their tubes at a single contact point allowing

the tube to move freely around its polar axis without making contact

with the telescope’s mount. This is particularly useful when adding

photographic and CCD instruments that extend from the rear of

the telescope.

GPS Compatible

All CGE mounted telescopes are compatible with

Celestron’s CN16 GPS accessory (Item #93967).

Combine the GPS and built-in Hibernate mode

and these telescopes will keep track and

remember their exact location and time without

the need to re-enter the information into the remote

hand control.

Features Available On Selected CGE Models

See product specifications for applicable models.

CGE SERIES

C14 • Pinwheel Galaxy • Image courtesy of Richard Hedrick

StarBright

XLT

COATINGS

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

CN16

GPS Accessory

CGE 1400

CGE SERIES

Model Item # Aperture Type Focal Length Eyepieces Finderscope Mount Computerized Weight

CGE 800 11058 200mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CGE Yes 113 lbs

CGE 800 (XLT) 11058-XLT 200mm (8”) Schmidt-Cassegrain 2032mm f/10 25mm (81x) 6x30 CGE Yes 113 lbs

CGE 925 11059 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CGE Yes 134 lbs

CGE 925 (XLT) 11059-XLT 235mm (9

/4”) Schmidt-Cassegrain 2350mm f/10 25mm (94x) 6x30 CGE Yes 134 lbs

CGE 1100 11061 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CGE Yes 142 lbs

CGE 1100 (XLT) 11061-XLT 279mm (11”) Schmidt-Cassegrain 2800mm f/10 40mm (70x) 9x50 CGE Yes 142 lbs

CGE 1400 11063 355mm (14”) Schmidt-Cassegrain 3910mm f/11 40mm (90x) 9x50 CGE Yes 184 lbs

CGE 1400 (XLT) 11063-XLT 355mm (14”) Schmidt-Cassegrain 3910mm f/11 40mm (90x) 9x50 CGE Yes 184 lbs

CGE 1400 11064-XLT 355mm (14”) Schmidt-Cassegrain 3910mm f/11 40mm (90x) 9x50 CGE Yes 184 lbs

For complete specifications and product information, visit: www.celestron.com

CGE 800

CGE 925

CGE 1100

CGE SERIES FEATURES AT A GLANCE

CGE SERIES SPECIFICATIONS

Mechanical Features

• Carbon Fiber Tube – Strong and lightweight (CGE 925 and 1400 feature

aluminum optical tubes)

• CNC machined aluminum and stainless steel components

• Autoguide port, PC port and auxiliary ports located on the electronic pier

• Strain relief power cord cable protection

• Backlit power switch

• Drive Motors – Made in the U.S.A., Pittman

LO-COG™

brush-commutated DC motors offer smooth, quiet operation and long life

• Precision Bronze Worm Gear – 32 pitch, 5.625" pitch diameter, 180 tooth

bronze gear. Manufactured to AGMA Quality Class 10 standard, which

minimizes total composite error and backlash

• Bearing and Shaft – Stainless steel worm shaft has 0.4375 pitch

diameter and is preloaded with two ball bearings; the single piece steel

worm is made to minimize run-out, which is a source of periodic error

• No-slip clutch system for pointing precision

• Schmidt-Cassegrain mechanism that moves the primary mirror to adjust

focus is supported by two pre-loaded ball bearings, minimizing the

“mirror flop” typical of bushing focus mechanisms

• Latitude range: 10º to 60º northern or southern hemispheres

• Maximum payload: 65 lbs

Tripod

• Adjustable height: 36" to 50"

• Leg material: cold rolled carbon steel

• Upper leg diameter: 2.75"; lower leg diameter: 2.375"

Electronic and Software Features

• GoTo system is precision accurate to 1.5 arcminutes

• 40,000+ object database with 400 user-defined objects

• Hibernate – maintains alignment even while powered down

• Polar alignment routines for Northern and Southern hemispheres

• Filter limits – displays only objects above the horizon, also allows for

user-defined limits

• Permanent programmable periodic error correction (PEC) – corrects for

periodic tracking errors inherent to all worm drives

• Smooth ramping of slew motors to reduce wear on the drive train

• Home sensors on R.A. and Dec axes

• Fail-safe slew limit switches in R.A.

• Real-time clock – maintains time even when powered down

• 12VDC Servo Motors with integrated optical encoders with

0.11 arcsecond resolution

• NexRemote™ Included

C14 • Tarantula Nebula • Image courtesy of Sebastian Voltmer

CGE Pro

Observatory-Class

Computerized

German Equatorial

Mount

The C20 Astrograph is a complete telescope system

featuring a revolutionary optical design that delivers

pinpoint stars across the entire field.

Goal: To design, engineer, and manufacture the finest

large aperture optical system possible for both imaging

and visual observation.

Achievement: The C20 Astrograph is the first telescope

system of its kind ever offered by a large commercial

telescope manufacturer.

After evaluating numerous design options, our

solution to the design of this instrument is a 20”

(

/2 meter) diameter f/6.8 coma-correct flat-field

Dall-Kirkham Cassegrain (corrected Dall-Kirkham)

optical assembly that is mounted on a newly designed,

massive CGE Pro observatory-class computerized German

Equatorial mount.

Revolutionary Optical System

Celestron’s Corrected Dall-Kirkham design exceeds the

off-axis performance of even the Ritchey-Chrétien design. RMS

spot sizes at the edge of a 35mm frame remain smaller than a single

pixel on the most advanced CCD cameras available to amateurs

today. The optical system also features a conical primary mirror with

low thermal mass and three cooling fans to minimize the cool down

time. This no-compromise design provides the superb resolving

power Dall-Kirkham telescopes are known for, but without the coma

and field curvature that has previously limited their wide-field

performance. Because of its flat-field design, you’ll find it a joy to use

for imaging as well as visual use. The C20 optical system will come

standard with Celestron’s advanced StarBright

XLT High

Performance Optical system.

The CGE Pro Mount

The tracking accuracy of this observatory-class mount is better than

5 arcseconds peak to valley without enabling the PEC function. The

C20 Astrograph mount separates into three components for easier

transporting and includes fully integrated electronics as well as

Celestron’s renowned and proven NexStar

software. It is also

supplied with NexRemote

Pro, a software package that creates

models of the mount which yields observatory class pointing

accuracy.

In A Class Of Its Own

Other telescopes that are in this premium category, such as the

Ritchey-Chrétien, cost many thousands of dollars more than a C20

and require that the optical tube, mount, and tripod be purchased

separately. In contrast, the C20 Astrograph is a complete package.

The C20 system includes the optical assembly, a carbon-fiber

truss system which minimizes refocusing due to temperature

changes, high performance computerized German Equatorial

mount, and professional class pier/tripod. The pier will be

available in both portable and permanent versions.

An Engineering Triumph

The C20 is without a doubt the most sophisticated

telescope that Celestron has ever designed and

manufactured. The C20 is a system that meets the

highest standards Celestron sets for technical

innovation, design and engineering superiority,

precision performance, and uncompromising optical quality.

We are now proud to offer our C20 OTA, CGE Pro Mount, CGE Pro

Tripod and CGE Pro Pier for sale separately.

C20 ASTROGRAPH

C20 • Dumbbell Nebula • Image courtesy of Richard Hedrick

C20 Astrograph

Model Item # Aperture Type Focal Length Pier/Tripod

C20 Astrograph 11095 0.51m (20”) Corrected Dall-Kirkham 3454mm f/6.8 Professional Class Portable

C20 Astrograph 11096 0.51m (20”) Corrected Dall-Kirkham 3454mm f/6.8 Professional Class Permanent

C20 OTA 91095 0.51m (20”) Corrected Dall-Kirkham 3454mm f/6.8 N/A

CGE Pro Mount 91520 N/A Computerized German EQ N/A N/A

CGE Pro Tripod 93490 N/A Heavy Duty Field Tripod N/A Professional Class Portable

CGE Pro Pier 93491 N/A Heavy Duty Pier N/A Professional Class Permanent

For complete specifications and product information, visit: www.celestron.com

C20 ASTROGRAPH FEATURES AT A GLANCE

C20 • Whirlpool Galaxy • Image courtesy of Richard Hedrick

C20 ASTROGRAPH SPECIFICATIONS

OTA Features

• Coma-Corrected Flat-Field Dall-Kirkham Cassegrain (Corrected Dall-Kirkham) - The

C20 is called an Astrograph because it is designed for a coma free flat field which

gives pinpoint stars across a large CCD chip or a wide field eyepiece.

• 20” (Half meter) aperture - Large aperture for imaging faint objects with ultra fine

resolution.

• F/6.8 Focal Ratio - A fast system f-ratio for shorter image times and a wider field

of view. This is 28% faster than f/8 and 54% faster than f/10.

• Carbon Fiber Dual Truss Design - both the lower primary mirror cage and the upper

cage are supported by a truss design made of carbon fiber tubes; this minimizes

expansion and contraction due to temperature change, and therefore limits

the change in focus.

• Carbon Fiber Light Shrouds - Carbon fiber light shrouds are available for the C20

OTA; the lower light shroud comes standard while the upper light shroud is optional

and removable. The shrouds physically protect the mirror and block unwanted stray

light.

• Filtered Cooling Fans - Three fans blow filtered air onto the back of the primary

mirror to minimize cool-down times.

• Fixed Conical Primary Mirror - The primary is fixed at Celestron to ensure that the

focal plane of the optics is true to the focal plane of the mechanics; the primary

is molded in a conical shape to reduce thermal mass (for quick cooling) and

minimize flexure of the optics.

• Spherical Secondary - A spherical secondary is much more forgiving to centering

errors compared to ellipsoidal or hyperbolic secondaries used in competing high-end

telescope designs; the result is that with the C20 you can easily align the system

to get the performance you paid for. With aspheric secondaries, you may never

achieve the performance you paid for.

• Dovetail Expansion Joint - the dovetail is made of aluminum and thus expands and

contracts due to temperature changes; the C20 dovetail has a built-in expansion joint

which allows it to expand and contract without inducing stress to the optical tube.

• 3.5” Heavy Load Focuser - This Crayford style focuser has been modified to run

on a lead screw rather than a friction surface; the result is a focuser that can

handle heavy imaging equipment without the focus shifting due to changes

in the telescope’s orientation.

• Temperature Sensors - The C20 has built-in temperature sensors; with the optional

control electronics, the sensors detect the temperature of the primary mirror and

the ambient air, and automatically control the fans to minimize any temperature

differential that may exist.

Mount Features

• Heavy Duty Computerized CGE Pro Mount - Weighing over 150 pounds the mount

is massive enough to hold payloads of 180 pounds.

• Meridian Limits - This mount can track more than 30 degrees beyond the meridian;

this is more than any other German Equatorial mount in the high-end market.

• Internal Wiring - For a permanent setup, the mount has an internal path through

which cable can be routed; for a CCD Camera for instance, the control cable,

the Autoguider cable and the power cable can be routed through the mount

to minimize dangling wires.

• Internal Switches - Built-in optical switches on both axes give the mount a very

accurate home position and will prevent the mount from tracking or slewing

to the point where the Dec axis hits the RA axis.

• Clutch System - Four set screws, orthogonal to the RA and Dec axes, lock the axes

so there is no slipping; when the set screws are loosened, the axes move freely

to facilitate precise balancing of the system.

• NexStar Computerized Control System - The mount comes standard with the latest

NexStar Computerized Control System; both the hand control and motor control

firmware are upgradeable with the latest firmware revisions which can be

downloaded from Celestron’s website.

• NexRemote Pro: Software for controlling the C20 from a personal computer;

NexRemote Pro models the mount to the sky using multiple alignment stars in order

to dramatically increase pointing accuracy. NexRemote Pro has a built-in polar

alignment algorithm accurate enough for a permanent observatory and quick enough

for a one night observing run; this alignment algorithm does not require sighting

on Polaris. Also included is a Finder Screen that acts like a mini-planetarium

program, a Mount Model Screen that displays the mount errors and the expected

pointing accuracy, and a virtual hand control that has most of the features of the

NexStar hand control unit — all displayed on the user’s computer screen.

C20 Astrograph

Rear View

Optical performance comparison of the

C20 astrograph with an equivalent

Ritchey-Chrétien (RC) system.

Grid squares are 9 microns and represent the pixel size of the

KAF-6303 CCD. The RC has a curved field and requires a field

flattener to achieve optimum imaging performance. The C20

has an inherently flat field. Simulated wavelength is 550 nm.

Note: The C20 optical performance is the same whether using the system

visually or using the system for imaging since it has a flat field. The RC

design has a curved field. This means that the system will perform

visually like the example labeled RC curved field because the eye can

accommodate the curved field of the design. When imaging, the design

will perform like the example labeled RC flat field.

C20 Astrograph RC Curved Field RC Flat Field

On-axis

Corner of

KAF-6303

CCD (17mm

off-axis)

C20 ASTROGRAPH

NexRemote Pro Finder Screen

NexRemote Pro Mount Model Screen

OPTICAL TUBE ASSEMBLIES

C8 • Eta Carinae • Image courtesy of Sebastian Voltmer

Model Item # Aperture Type Focal Length Eyepieces Finderscope Dovetail Coatings Weight

C8-A 91024 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CGE StarBright

12 lbs

C8-A (XLT) 91024-XLT 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CGE StarBright

XLT 12 lbs

C8-A 91020 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CG-5 StarBright

12 lbs

C8-A (XLT) 91020-XLT 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CG-5 StarBright

XLT 12 lbs

C8-CF 91023 200mm (8”) Carbon Fiber 2032mm f/10 25mm (81x) 6x30 CGE StarBright

12 lbs

C8-CF (XLT) 91023-XLT 200mm (8”) Carbon Fiber 2032mm f/10 25mm (81x) 6x30 CGE StarBright

XLT 12 lbs

/4-A 91027 235mm (9

/4”) Aluminum 2350mm f/10 25mm (94x) 6x30 CGE StarBright

20 lbs

/4-A (XLT) 91027-XLT 235mm (9

/4”) Aluminum 2350mm f/10 25mm (94x) 6x30 CGE StarBright

XLT 20 lbs

/4-A 91025 235mm (9

/4”) Aluminum 2350mm f/10 25mm (94x) 6x30 CG-5 StarBright

20 lbs

/4-A (XLT) 91025-XLT 235mm (9

/4”) Aluminum 2350mm f/10 25mm (94x) 6x30 CG-5 StarBright

XLT 20 lbs

/4-CF 91026 235mm (9

/4”) Carbon Fiber 2350mm f/10 25mm (94x) 6x30 CGE StarBright

20 lbs

/4-CF (XLT) 91026-XLT 235mm (9

/4”) Carbon Fiber 2350mm f/10 25mm (94x) 6x30 CGE StarBright

XLT 20 lbs

C11-A 91036 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CGE StarBright

27 lbs

C11-A (XLT) 91036-XLT 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CGE StarBright

XLT 27 lbs

C11-CF 91035 279mm (11”) Carbon Fiber 2800mm f/10 40mm (70x) 9x50 CGE StarBright

27 lbs

C11-CF (XLT) 91035-XLT 279mm (11”) Carbon Fiber 2800mm f/10 40mm (70x) 9x50 CGE StarBright

XLT 27 lbs

C11-A 91067 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CG-5 StarBright

27 lbs

C11-A (XLT) 91067-XLT 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CG-5 StarBright

XLT 27 lbs

C14-A 91037 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

45 lbs

C14-A (XLT) 91037-XLT 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

XLT 45 lbs

C14-A (XLT) 91038-XLT 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

XLT 45 lbs

OPTICAL TUBE ASSEMBLY SPECIFICATIONS

For complete specifications and product information, visit: www.celestron.com

Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available

individually for use with your favorite mount. Each OTA is made to the same

exacting standards as those used on all our high quality telescopes.

All optical surfaces are coated with Celestron’s high efficiency StarBright

multi-layered coating group. These tube assemblies are equipped with the

same dovetail mounting bar used on the CGE and Advanced Series for easy

attachment to a variety of popular mounts. Every tube assembly is made,

assembled and quality control tested at our manufacturing facility in

Torrance, California.

C14-A

C8-CF

/4-CF

C11-CF

OTA FEATURES AT A GLANCE

• Carbon fiber or aluminum tube available on 8” through 11” tubes

• 14” models available only in aluminum

• Optional StarBright

XLT coating is available on all models

• Item #s 91023 and 91038 are FASTAR compatible

MOUNTS

For complete specifications and product information, visit: www.celestron.com

CG-5

Mount

CG-5 MOUNT FEATURES

C8 • Trifid Nebula • Image courtesy of Sebastian Voltmer

MOUNT SPECIFICATIONS

CG-5 Mount — Precision engineered for stability

The CG-5 German Equatorial mount has precision worm gears on both axes for

extremely smooth operation. The key element that makes this system the most

stable in its class is the heavy-duty tripod with larger and more substantial legs

that offer excellent damping characteristics for more stable views. The CG-5

also has a convenient latitude scale for easier alignment and an optional polar

finder scope for the ultimate in precision alignments.

CG-5 Computerized — GoTo convenience and

GPS compatibility for precision accuracy

We are proud to offer a computerized GoTo version of Celestron's sturdy CG-5

mount. Couple this solid mount with the included computerized control system

to utilize many of the same functions and features — like the NexStar

computer control system and an Autoguider port for long exposure deep sky

astrophotography — as Celestron's most advanced GoTo telescopes. GoTo

models are also upgradeable to GPS with the optional CN16 GPS Accessory

(#93966) allowing your telescope to pinpoint your position on the earth, the

date and time, making the alignment process faster and easier than ever

before!

CG-5

Computerized

Mount

Recognized For Superior Stability

An improved Super HD Tripod supports the CGE mount. This fully

extendable tripod is made from the finest cold rolled carbon steel and

can be raised to a height of 50". The tripod uses a dual leg support for

maximum rigidity with an upper leg brace to provide an outward preload

and a lower leg brace providing inward tension.

CGE Equatorial Mounts Can Easily be Balanced

on Both Axes

Balancing the weight of camera equipment and other visual accessories is

accomplished by simply sliding the counterweight for Right Ascension and

moving the optical tube along its dovetail mounting for Declination. This

means that no additional weight needs to be added to balance the

telescope when additional accessories are added.

Clearance For Accessories

CGE mounts support their tubes at a single contact point allowing the tube

to move freely around its polar axis without making contact with the

telescope’s mount. This is particularly useful when adding photographic

and CCD instruments that extend from the rear of the telescopes.

GPS Compatible

All CGE mounts are compatible with Celestron’s CN16 GPS accessory

(Item #93967). Combine the GPS and built-in Hibernate mode and these

mounts will keep track and remember their exact location and time

without the need to re-enter the information into the remote hand control.

CGE MOUNT FEATURES

Model Item # Description Weight

CG-5 Mount 91517 German Equatorial Mount and Tripod. Includes one 11lb. Weight 41 lbs

CG-5 Computerized Mount 91518 Same as #91517 plus dual-axis slew motors and computerized hand control w/ 40,000+ object database 42 lbs

CGE Computerized Mount 91524 German Equatorial Mount and Tripod. Includes one 25lb. weight 114 lbs

CGE

Mount

Options Available On Computerized Mounts

See product specifications for applicable models.

NexRemote

Remote Control

Software

ALIGN

ENTER

UNDO

CN16

GPS Accessory

ACCESSORIES

C11 using Celestron’s NexImage • Jupiter • Image courtesy of Jason Fournier

For complete specifications and product information, visit: www.celestron.com

Astro Imaging Made Easy

Whether you currently own a telescope

or are contemplating a purchase, Celestron’s

NexImage™ Solar System Imaging Kit is a

MUST HAVE!

NexImage is a complete CCD solar system

imager capable of producing high quality

planetary images with greater light sensitivity

and color fidelity than comparable CMOS imagers. Combined with the

NexImage software package, NexImage can bring out tremendous detail and

reveal a final image that will rival those taken with astronomical CCD

cameras costing thousands of dollars more.

• View and capture live video on your computer screen

• Software automatically filters out video frames most affected by poor

atmospheric "seeing" leaving only the sharpest, clearest frames to be

stacked and aligned into one high quality image

• Easy to follow quick start instructions and tutorial with sample video file

that will have you producing quality images your first night out

• Camera control software allows you to manually change the gain, contrast,

exposure time, frame rate and color saturation using your PC

• Compatibility – threaded on 1.25" adapter barrel makes NexImage

compatible with most any telescope.

• Versatility – 1.25"adapter is threaded for standard eyepiece filters and can

be removed and replaced with optional focal reducer lens.

• Tutorial – step-by-step Quick start and tutorial complete with sample video

file that will have you producing quality images your first night out.

• Power – NexImage uses a

/4" format color CCD chip that gives the same

approximate magnification as a 5mm, 50° field of view eyepiece.

NexImage comes with the following:

• NexImage Camera with 1.25” adapter and USB cable attached (7ft long)

• CD-ROM including:

-Image capture software – to capture streaming video of image

-Image processing software – to align and stack individual frame into one

high quality image.

• Quick Setup and Tutorial – complete with sample images

NexImage Specifications

• Chip:

/4" format, HAD, color CCD chip

• Resolution: VGA 640x480; Size: 3.6mm x 2.7 (4.5mm diagonal)

• Pixel Size: 5.6 micron square

• Sensitivity: <1 lux

Recommended Minimum System Requirements:

• PC running Windows 98SE or better; 333Mhz Pentium II or better

• 128 MB of RAM; 40 MB of hard drive space

• Screen resolution of 1024x768 or higher

NEXIMAGE FEATURES

Model Item # Description

NexImage 93712 CCD Solar System Imager

Please visit our web site to see our full line of

accessories designed to enhance your astronomical

experience. www.celestron.com

PowerTank 7 & 17

Take your telescope anywhere with this

portable rechargeable power supply.

PowerTanks include an emergency light, and

booster terminals to start weak car batteries.

POWER TANK FEATURES

Model Item # Description

PowerTank 7 18774 Portable Rechargeable Power Supply

PowerTank 17 18777 Portable Rechargeable Power Supply

Eyepiece and Filter Kit

All eyepieces are fully multi-coated offering

superb color resolution, edge sharpness and

clarity. Supplied are a 4mm,6mm, 9mm,

15mm, and 32mm.

A 2x Barlow Lens complements the Plössl

eyepieces in this kit and gives you a total of

ten power combinations. High grade glass

optics with fully multi-coated lenses are used

so there is no degradation of image. Also included are a variety of lunar

and planetary filters, a moon filter and aluminum carrying case.

• Five Superior Grade Plössl Eyepieces - 1.25” — 4-element design with

a 52° AFOV (32mm has 44° ); Barlow Lens - 2x 1.25”

• Six Colored Eyepiece (Lunar & Planetary) Filters - 1.25” — Included are

Kodak Wratten #12, #21, #25, #56, #58A, and #80A. These filters will

greatly enhance your enjoyment of our solar system.

• Moon Filter - 1.25” — A neutral density filter which allows you

maximum enjoyment of the moon especially during the brighter phases.

• Aluminum Carrying Case — This sturdy case fits all of the above items

in the die-cut foam interior and has room for additional accessories.

Model Item # Description

Eyepiece & Filter Kit 94303 1.25” Eyepieces & Filters

EYEPIECE & FILTER KIT FEATURES

PowerTank 7

• 7-amp hour, 12 Volt D.C.

• Two 12V output cigarette

lighter ports

• 3V, 6V and 9V outputs for

accessories

• Built-in flashlight with red filter cap

• 800,000 candle power Halogen

emergency spotlight

• Booster terminal on rear side

• Built-in Circuit Breaker for safety

• Cigarette lighter adapter included

• 110V/220V switchable universal

AC adapter included

PowerTank 17

• 17 amp hour, 12 Volt D.C.

• 2 x 12V DC output car jack socket

• 3V, 6V, 9V output jacks

• Built-in AM/FM Radio and Siren

• Removable red filtered flashlight

with magnetic back

• Built-in multi-angle 800,000cp

emergency Halogen spotlight

• Handy jump-start system - 250

cranking AMPS (5 sec.)

• Built-in circuit breaker for safety

• Cigarette lighter adapter included

• Switchable 110V-220V AC adapter

FIRSTSCOPE SERIES

SPECIFICATIONS

FirstScope 21052 21067 21076 31032

Models FirstScope 60AZ FirstScope 60EQ FirstScope 70EQ FirstScope 76 EQ

Specifications

Optical Design Refractor Refractor Refractor Reflector

Aperture 60mm (2.4") 60mm (2.4") 70mm (2.8") 76mm (3")

Focal Length/Ratio 700mm F/12 900mm F/15 900mm F/13 700mm F/9

Finderscope StarPointer StarPointer StarPointer StarPointer

Mount Altazimuth Equatorial Equatorial Equatorial

Eyepiece 20mm (35X) 20mm (45x) 20m (45x) 20mm (35x)

Eyepiece 10mm (70X) 10mm (90x) 10mm (90x) 10mm (70x)

Star Diagonal / Erect Image Eyepiece 1.25" / 1.5x E.I. Eyepiece 1.25" 90º 1.25" 90º n/a

Accessory Tray Round, Thread-in Round, Thread-in Round, Thread-in Round, Thread-in

Tripod Aluminum Aluminum Aluminum Aluminum

CD ROM The Sky L1 The Sky L1 The Sky L1 The Sky L1

Technical Specifications

Highest Useful Magnification 142x 142x 165x 180x

Limiting Stellar Magnitude 11.4 11.4 11.7 11.9

Resolution: Rayleigh 2.31 arc seconds 2.31 arc seconds 1.98 arc seconds 1.82 arc seconds

Dawes Limit 1.93 arc seconds 1.93 arc seconds 1.66 arc seconds 1.53 arc seconds

Light Gathering Power 73x unaided eye 73x unaided eye 100x unaided eye 118x unaided eye

Field of View: standard eyepiece 1.20º .90º .90º 1.20º

Linear FOV (@1000 yds) 75 ft. 58 ft 48 ft 62 ft.

Secondary Mirror Obstruction n/a n/a n/a .75" (25% by diameter, 6% by area)

Optical Coatings Fully Coated Fully Coated Fully Coated Aluminum

Optical Tube Length 28 inches 30 inches 30 inches 27 inches

Telescope Weight 7 lbs 11 lbs 17 lbs 15 lbs

FirstScope 21084 21085 31041 31044

Models FirstScope 90AZ FirstScope 90EQ FirstScope 114 Compact FirstScope 114

Specifications

Optical Design Refractor Refractor Reflector Reflector

Aperture 90mm (3.5") 90mm (3.5") 114mm (4.5") 114mm (4.5")

Focal Length 1000mm F/11 1000mm F/11 1000mm F/9 900mm F/8

Finderscope StarPointer StarPointer StarPointer StarPointer

Mount Altazimuth Equatorial Equatorial Equatorial

Eyepiece 20mm (50x) 20mm (50x) 20mm (50x) 20mm (45x)

Eyepiece 10mm (100x) 10mm (100x) 10mm (100x) 10mm (90x)

Star Diagonal / Erect Image Eyepiece 1.25" 45º Erect Image 1.25" 90º n/a n/a

Accessory Tray Round, Thread-in Round, Thread-in Round, Thread-in Round, Thread-in

Tripod Aluminum Aluminum Aluminum Aluminum

CD ROM The Sky L1 The Sky L1 The Sky L1 The Sky L1

Technical Specifications

Highest Useful Magnification 213x 213x 269x 269x

Limiting Stellar Magnitude 12.3 12.3 12.8 12.8

Resolution: Rayleigh 1.54 arc seconds 1.54 arc seconds 1.21 arc seconds 1.21 arc seconds

Dawes Limit 1.29 arc seconds 1.29 arc seconds 1.02 arc seconds 1.02 arc seconds

Light Gathering Power 165x unaided eye 165x unaided eye 265x unaided eye 265x unaided eye

Field of View: standard eyepiece .80º .80º .80º .90º

Linear FOV (@1000 yds) 43 ft. 43 ft. 43 ft. 48 ft.

Secondary Mirror Obstruction n/a n/a 1.4" (31% by diameter, 10% by area) 1" (22% by diameter, 5% by area)

Optical Coatings Multi-Coated Multi-Coated Aluminum Aluminum

Optical Tube Length 40 inches 40 inches 20 inches 34 inches

Telescope Weight 19 lbs 22 lbs 16 lbs 19 lbs

Specifications are subject to change without notice or obligation.

FirstScope 60 • Moon • Image courtesy of Klaus Modinger

STARHOPPER SERIES

SPECIFICATIONS

C14 • Mars • Image courtesy of Sebastian Voltmer

StarHopper 10600 10800 10110 10112

Models StarHopper 6 StarHopper 8 StarHopper 10 StarHopper 12

Optical Design Dobsonian Reflector Dobsonian Reflector Dobsonian Reflector Dobsonian Reflector

Aperture 6” (152mm) 8” (203mm) 10” (254mm) 12” (305mm)

Focal Length 48" (1219mm) 48" (1219mm) 50" (1270mm) 60" (1500mm)

Focal Ratio f/8 f/6 f/5 f/5

Eyepieces 25mm Plossl 1.25” 25mm Plossl 1.25” 32mm e-lux 2" 32mm e-lux 2"

Collimation Cap Yes Yes Yes Yes

Eyepiece Tray Yes Yes Yes Yes

Focuser 1.25" 2" 2" 2"

Finder 6x30 9x50 9x50 9x50

Primary BK7 BK7 BK7 BK7

Cooling N/A N/A Fan Fan

Mirror Cell 3-point 3-point 3-point 9-point

Azimuth Bearing Roller track Roller track Roller track Roller track

Altitude Bearing Nylon Cylinder Nylon Cylinder Nylon Cylinder Nylon Cylinder

Tension System Variable friction clutch Variable friction clutch Variable friction clutch Variable friction clutch

Handle Base Base Base Base

Tube Steel Steel Steel Steel

Highest Useful Magnification 359x 480x 600x 721x

Lowest Useful Magnification 22x 29x 36x 44x

Limiting Stellar Magnitude 13.4 14 14.5 14.9

Resolution: Rayleigh .91 arcsec .68 arcsec .54 arcsec .45 arcsec

Dawes Limit .76 arcsec .57 arcsec .46 arcsec .38 arcsec

Light Gathering Power 472 843 1317 1898

Field of View: standard eyepiece (°) 1.03 1.03 1.0 0.83

Linear FOV (@1000 yds) 54.1 54.1 52.5 43.6

Secondary Mirror Obstruction (inches) 1.5 1.95 2.5 2.75

by Diameter 25% 24% 25% 23%

by Area 6.3% 5.9% 6.3% 5.3%

Optical Tube Length 45” 45” 48” 58”

Telescope Weight 46 lbs 54 lbs 65 lbs 80 lb

Specifications are subject to change without notice or obligation.

C8 • NGC 772 • Image courtesy of Sebastian Voltmer

NexStar SLT 22076 22086 22096 31143 31145

Models NexStar 60 SLT NexStar 80 SLT NexStar 102 SLT NexStar 114 SLT NexStar 130 SLT

Specifications

Optical Design Refractor Refractor Refractor Reflector Reflector

Aperture (mm) 60mm (2.4') 80mm (3.1") 102mm (4") 114mm (4.5") 130mm (5")

Focal Length (mm) 700mm 900mm 660mm 1000mm 650mm

Focal Ratio F/12 F/11 F/6.5 F/9 F/5

Finderscope StarPointer StarPointer StarPointer StarPointer StarPointer

Mount Motorized Altazimuth Motorized Altazimuth Motorized Altazimuth Motorized Altazimuth Motorized Altazimuth

Eyepiece (mm) 25mm (28x) 25mm (36x) 25mm (26x) 25mm (40x) 25mm (26x)

Eyepiece (mm) 9mm (78x) 9mm (100x) 9mm (73x) 9mm (111x) 9mm (72x)

Star Diagonal 1.25" 1.25" 1.25" n/a n/a

Accessory Tray No Tool, Quick release No Tool, Quick release No Tool, Quick release No Tool, Quick release No Tool, Quick release

Tripod Pre-assembled Steel Pre-assembled Steel Pre-assembled Steel Pre-assembled Steel Pre-assembled Steel

CD ROM The Sky L1 & NSOL The Sky L1 & NSOL The Sky L1 & NSOL The Sky L1 & NSOL The Sky L1 & NSOL

Telescope Control System NexStar Computer NexStar Computer NexStar Computer NexStar Computer NexStar Computer

Control System Control System Control System Control System Control System

Computerized Hand Control Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character,

Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display;

19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons

Database 4,000 Object Database 4,000 Object Database 4,000 Object Database 4,000 Object Database 4,000 Object Database

Slew Speeds Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec,

2º /sec, 1º/sec, .5 /sec, 2º /sec, 1º/sec, .5 /sec, 2º /sec, 1º/sec, .5 /sec, 2º /sec, 1º/sec, .5 /sec, 2º /sec, 1º/sec, .5 /sec,

32x,16x, 8x, 4x, 2x 32x,16x, 8x, 4x, 2x 32x,16x, 8x, 4x, 2x 32x,16x, 8x, 4x, 2x 32x,16x, 8x, 4x, 2x

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar

Tracking Modes Alt-Az, EQ North & EQ South Alt-Az, EQ North & EQ South Alt-Az, EQ North & EQ South Alt-Az, EQ North & EQ South Alt-Az, EQ North & EQ South

GPS Compatible CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory

Alignment Procedures SkyAlign, Auto 2-Star Align, SkyAlign, Auto 2-Star Align, SkyAlign, Auto 2-Star Align, SkyAlign, Auto 2-Star Align, SkyAlign, Auto 2-Star Align,

1-Star Align, 2-Star Align, 1-Star Align, 2-Star Align, 1-Star Align, 2-Star Align, 1-Star Align, 2-Star Align, 1-Star Align, 2-Star Align,

Solar System Align Solar System Align Solar System Align Solar System Align Solar System Align

Technical Specifications

Highest Useful Magnification 142x 189x 240x 269x 306x

Limiting Stellar Magnitude 11.4 12 12.5 12.8 13.1

Resolution: Rayleigh (arc sec) 2.31 arc seconds 1.73 arc seconds 1.36 arc seconds 1.21 arc seconds 1.06 arc seconds

Dawes Limit (arc sec) 1.93 arc seconds 1.45 arc seconds 1.14 arc seconds 1.02 arc seconds .89 arc seconds

Photographic Resolution 171 lines/mm 182 lines/mm 308 lines/mm 228 line/mm 400 line/mm

Light Gathering Power 73x unaided eye 131x unaided eye 212x unaided eye 265x unaided eye 345x unaided eye

Field of View (degrees)

w/ low power eyepiece 1.6º 1.3º 1.7º 1.1º 1.7º

Linear FOV (ft@1000 yds) 84 ft. 66 ft. 91 ft. 59 ft 91 ft.

Optical Coatings Fully Coated Fully Coated Multi-Coated Aluminum Aluminum

Secondary Mirror Obstruction n/a n/a n/a 1.6" 1.7"

Secondary Mirror Obstruction (dia.) n/a n/a n/a 36% 34%

Secondary Mirror Obstruction (area) n/a n/a n/a 13% 12%

Optical Tube Length 28 inches 34 inches 23 inches 19 inches 21 inches

Telescope Weight 10 lbs 14 lbs 14 lbs 15 lbs 18 lbs

NEXSTAR SLT SERIES

SPECIFICATIONS

Specifications are subject to change without notice or obligation.

ADVANCED SERIES

SPECIFICATIONS

C11 • Flame Nebula • Image courtesy of Sebastian Voltmer

Advanced 21021 21026 21016 31063 31056 31053

Model C80ED-R C100ED-R C4-R C130-M C6-N C6-N HD

Specifications

Optical Design Refractor Refractor Refractor Maksutov-Cassegrain Reflector Reflector

Aperture 80mm (3.2") 100mm (4") 102mm (4") 130mm(5") 150mm (6") 150mm (6")

Focal Length/Ratio 600mm F/7.5 900mm F/9 1000mm F/10 2000mm F/15.3 750mm f/5 750mm f/5

Eyepiece 20mm (30x) 20mm (45x) 20mm (50x) 32mm (63x) 20mm (38x) 20mm (38x)

Finderscope 6x30 9x50 6x30 10x50 6x30 6x30

Mount CG-5 Equatorial CG-5 Equatorial CG-4 Equatorial CG-5 Equatorial CG-4 Equatorial CG-5 Equatorial

Star Diagonal 1.25" 1.25" 1.25" 1.25" n/a n/a

Accessory Tray yes yes yes yes yes yes

Tripod 2" Stainless Steel 2" Stainless Steel Aluminum 2" Stainless Steel Aluminum 2" Stainless Steel

CD ROM The Sky L1 The Sky L1 The Sky L1 The Sky L1 The Sky L1 The Sky L1

Counterweights 1-7lbs 1-11 lbs 1-7lb, 1-4lbs 1-11lbs 1-7lbs, 1-4lbs 1-7lbs, 1-4lbs

Power (GT versions only) Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter

Fastar Compatible n/a n/a n/a n/a n/a n/a

Highest Useful Magnification 189x 236x 241x 300x 354x 354x

Lowest Useful Magnification 11x 14x 15x 18x 21x 21x

Limiting Stellar Magnitude 12 12.5 12.5 14 13.4 13.4

Resolution: Rayleigh 1.73 arc seconds 1.38 arc seconds 1.36 arc seconds 1.1arc seconds .92 arc seconds .92 arc seconds

Dawes Limit 1.45 arc seconds 1.16 arc seconds 1.14 arc seconds .91 arc seconds .77 arc seconds .77 arc seconds

Light Gathering Power 131x unaided eye 204x unaided eye 212x unaided eye 329x unaided eye 459x unaided eye 459x unaided eye

Field of View: standard eyepiece 1.67º 1.1º 1º .83º 1.3º 1.3º

Linear FOV (@1000 yds) 87.5 ft 70 ft 52.5 ft 44 ft. 68 ft. 68 ft.

Optical Coatings Fully Multi-Coated Fully Multi-Coated Multi-Coated Multi-Coated Aluminum Aluminum

Secondary Mirror Obstruction n/a n/a n/a 1.5” 1.75" 1.75"

by Area n/a n/a n/a 9% 8.5% 8.5%

by Diameter n/a n/a n/a 29% 29% 29%

Optical Tube Length 23 inches 34 inches 40 inches 18 inches 27 inches 27 inches

Telescope Weight 42 lbs 50 lbs 36 lbs 51 lbs 35 lbs 54 lbs

Advanced 21022 21027 31064 31054

Computerized Models C80ED-RGT C100ED-RGT C130-MGT C6-N GT

Additional Specifications for Computerized Models

Computerized Hand Control Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character,

Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display;

19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons

Max Slew Speed 3º/second 3º/second 3º/second 3º/second

Software Precision 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08

arcsec calculation arcsec calculation arcsec calculation arcsec calculation

Hand Control Ports RS-232 communication RS-232 communication RS-232 communication RS-232 communication

port on hand control port on hand control port on hand control port on hand control

Motor Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar

Tracking Modes EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South

Alignment Procedures AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star

Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align

Database 40,000+ objects, 40,000+ objects, 40,000+ objects, 40,000+ objects,

400 user defined 400 user defined 400 user defined 400 user defined

programmable objects programmable objects programmable objects programmable objects

Enhanced information Enhanced information Enhanced information Enhanced information

on over 200 objects on over 200 objects on over 200 objects on over 200 objects

Complete Revised NGC Catalog 7,840 7,840 7,840 7,840

Complete Messier Catalog 110 110 110 110

Complete IC Catalog 5,386 5,386 5,386 5,386

Complete Caldwell 109 109 109 109

Abell Galaxies 2,712 2,712 2,712 2,712

Solar System objects 9 9 9 9

Famous Asterisms 20 20 20 20

Selected CCD Imaging Objects 25 25 25 25

Selected SAO Stars 29,500 29,500 29,500 29,500

Total Object Database 45,492 45,492 45,492 45,492

Specifications are subject to change without notice or obligation.

Advanced 21019 11025/11025-XLT 31061 11045/11045-XLT 11047 11066/11066-XLT

Standard Models C6-R C8-S C8-N C9.25-S C10-N C11-S

Specifications

Optical Design Refractor Schmidt-Cassegrain Reflector Schmidt-Cassegrain Reflector Schmidt-Cassegrain

Aperture 150mm (6") 203mm (8") 200mm (8") 235mm (9.25") 254mm (10") 279mm (11")

Focal Length/Ratio 1200mm F/8 2032mm F/10 1000mm F/5 2350mm F/10 1200mm F/4.7 2800mm F/10

Eyepiece 20mm (60x) 25mm (81x) 20mm (50x) 25mm (94x) 20mm (60x) 40mm (70x)

Finderscope 9x50 6x30 9x50 6x30 9x50 9x50

Mount CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial

Star Diagonal 1.25" 1.25" n/a 1.25" n/a 1.25"

Accessory Tray yes yes yes yes yes yes

Tripod 2" Stainless Steel 2" Stainless Steel 2" Stainless Steel 2" Stainless Steel 2" Stainless Steel 2" Stainless Steel

CD ROM The Sky L1 The Sky L1 The Sky L1 The Sky L1 The Sky L1 The Sky L1

Counterweights 2-11lbs 1-11lbs 2-11lbs 2-11lbs 3-11lbs 3-11lbs

Power (GT versions only) Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter

Fastar Compatible n/a yes n/a n/a n/a n/a

Highest Useful Magnification 354x 480x 480x 555x 600x 660x

Lowest Useful Magnification 21x 29x 29x 34x 36x 40x

Limiting Stellar Magnitude 13.4 14 14 14.4 14.5 14.7

Resolution: Rayleigh .92 arc seconds .68 arc seconds .69 arc seconds .59 arc seconds .54 arc seconds .50 arc seconds

Dawes Limit .77 arc seconds .57 arc seconds .58 arc seconds .49 arc seconds .46 arc seconds .42 arc seconds

Light Gathering Power 459x unaided eye 843x unaided eye 843 unaided eye 1127x unaided eye 1316 unaided eye 1593x unaided eye

Field of View: standard eyepiece .83º .64º 1º .55º .83º .71º

Linear FOV (@1000 yds) 43.8 ft 33.6 ft. 52.5 ft. 29 ft. 43.8 ft. 38 ft.

Optical Coatings Multi-Coated StarBright Coating/XLT Aluminum StarBright Coating/XLT Aluminum StarBright Coating/XLT

Secondary Mirror Obstruction n/a 2.7" 2.2" 3.35" 2.3" 3.75"

by Area n/a 11% 8% 13% 5% 12%

by Diameter n/a 34% 28% 36% 23% 34%

Optical Tube Length 50.5 inches 17 inches 37 inches 22 inches 45 inches 24 inches

Telescope Weight 68 lbs 54.5 lbs 67 lbs 73 lbs 93 lbs 91 lbs

Advanced 21020 11026/11026-XLT 31062 11046/11046-XLT 11048 11067/11067-XLT

Computerized Models C6-R GT C8-S GT C8-N GT C9.25-S GT C10-N GT C11-S GT

Additional Specifications for Computerized Models

Computerized Hand Control Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character,

Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display;

19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons

Max Slew Speed 3º/second 3º/second 3º/second 3º/second 3º/second 3º/second

Software Precision 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08

arcsec calculation arcsec calculation arcsec calculation arcsec calculation arcsec calculation arcsec calculation

Hand Control Ports RS-232 communication RS-232 communication RS-232 communication RS-232 communication RS-232 communication RS-232 communication

port on hand control port on hand control port on hand control port on hand control port on hand control port on hand control

Motor Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar

Tracking Modes EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South

Alignment Procedures AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star

Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align

Database 40,000+ objects, 40,000+ objects, 40,000+ objects, 40,000+ objects, 40,000+ objects, 40,000+ objects,

400 user defined 400 user defined 400 user defined 400 user defined 400 user defined 400 user defined

programmable objects programmable objects programmable objects programmable objects programmable objects programmable objects

Enhanced information Enhanced information Enhanced information Enhanced information Enhanced information Enhanced information

on over 200 objects on over 200 objects on over 200 objects on over 200 objects on over 200 objects on over 200 objects

Complete Revised NGC Catalog 7,840 7,840 7,840 7,840 7,840 7,840

Complete Messier Catalog 110 110 110 110 110 110

Complete IC Catalog 5,386 5,386 5,386 5,386 5,386 5,386

Complete Caldwell 109 109 109 109 109 109

Abell Galaxies 2,712 2,712 2,712 2,712 2,712 2,712

Solar System objects 9 9 9 9 9 9

Famous Asterisms 20 20 20 20 20 20

Selected CCD Imaging Objects 25 25 25 25 25 25

Selected SAO Stars 29,500 29,500 29,500 29,500 29,500 29,500

Total Object Database 45,492 45,492 45,492 45,492 45,492 45,492

ADVANCED SERIES

SPECIFICATIONS

C9-1/4 • Trifid Nebula • Image courtesy of Richard Jacobs

Specifications are subject to change without notice or obligation.

CPC SERIES

SPECIFICATIONS

CPC 11073/11073-XLT 11074/11074-XLT 11075/11075-XLT

Models CPC 800 CPC 925 CPC 1100

Specifications

Optical Design Schmidt-Cassegrain Schmidt-Cassegrain Schmidt-Cassegrain

Aperture 8” (203mm) 9.25” (235mm) 11” (279mm)

Focal Length/Ratio 2032mm F/10 2350mm F/10 2800mm F/10

Finderscope 8x50mm Finderscope w/ quick release bracket 8x50mm Finderscope w/ quick release bracket 8x50mm Finderscope w/ quick release bracket

Mount Dual Fork Arm Dual Fork Arm Dual Fork Arm

Optical Tube Aluminum Aluminum Aluminum

Eyepiece 40mm Plossl (51x) 40mm Plossl (59x) 40mm Plossl (70x)

Star Diagonal 1.25" 1.25" 1.25"

Accessory Tray Leg Brace / Eyepiece Holder Leg Brace / Eyepiece Holder Leg Brace / Eyepiece Holder

Tripod Heavy Duty Steel Adjustable Heavy Duty Steel Adjustable Heavy Duty Steel Adjustable

Power Supply Car Battery Adapter Car Battery Adapter Car Battery Adapter

Telescope Control System NexStar Computer Control System NexStar Computer Control System NexStar Computer Control System

Software NexRemote control NexRemote control NexRemote control

software w/RS232 cable software w/RS232 cable software w/RS232 cable

Computerized Hand Control Double line 16 character, Double line 16 character, Double line 16 character,

Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display;

19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons

Hand Control Ports RS-232 communication port on hand control RS-232 communication port on hand control RS-232 communication port on hand control

Drive Base Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports

Database 40,000 Object Database 40,000 Object Database 40,000 Object Database

GPS Internal 16 channel Internal 16 channel Internal 16 channel

Software Specifications

Motor: Type DC Servo motors with encoders, both axes DC Servo motors with encoders, both axes DC Servo motors with encoders, both axes

Resolution .1406 arcsecond .1406 arcsecond .1406 arcsecond

Slew Speeds Nine slew speeds: 3º /sec, 2º /sec, Nine slew speeds: 3º /sec, 2º /sec, Nine slew speeds: 3º /sec, 2º /sec,

.5º/sec, 64x, 16x, 8x, 4x, 1x, .5x .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x

Software Precision 24bit, 0.08 arcsec calculations 24bit, 0.08 arcsec calculations 24bit, 0.08 arcsec calculations

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar

Tracking Modes Altazimuth, EQ North & EQ South Altazimuth, EQ North & EQ South Altazimuth, EQ North & EQ South

Alignment Procedures SkyAlign, Auto Two Star Align, SkyAlign, Auto Two Star Align, SkyAlign, Auto Two Star Align,

One-Star Align, EQ Align, Solar System Align One-Star Align, EQ Align, Solar System Align One-Star Align, EQ Align, Solar System Align

Mechanical Specifications

Fork Arm Dual fork arm, cast aluminum Dual fork arm, cast aluminum Dual fork arm, cast aluminum

w/ detachable HC cradle w/ detachable HC cradle w/ detachable HC cradle

Gear 5.625" 180 tooth hard anodized 5.625" 180 tooth hard anodized 5.625" 180 tooth hard anodized

aluminum gear mated w/ brass worm aluminum gear mated w/ brass worm aluminum gear mated w/ brass worm

Bearings 9.8" azimuth bearing 9.8" azimuth bearing 9.8" azimuth bearing

Periodic Error Correction Permanently Programmable Permanently Programmable Permanently Programmable

Optical Specifications

Highest Useful Magnification 480x 555x 660x

Lowest Useful Magnification 29x 34x 40x

Limiting Stellar Magnitude 14 14.4 14.7

Resolution: Rayleigh .68 arc seconds .59 arc seconds .50 arc seconds

Dawes Limit .57 arc seconds .49 arc seconds .42 arc seconds

Light Gathering Power 843x unaided eye 1127x unaided eye 1593x unaided eye

Field of View :standard eyepiece .8º .7º .6º

Linear FOV (@1000 yds) 42 ft. 38 ft. 32 ft.

Optical Coatings Standard: StarBright Coatings Standard: StarBright Coatings Standard: StarBright Coatings

Optional: StarBright XLT Coatings Optional: StarBright XLT Coatings Optional: StarBright XLT Coatings

Secondary Mirror Obstruction 2.5" 3.35" 3.75"

by Area 10% 13% 12%

by Diameter 31% 36% 34%

Optical Tube Length 17 inches 22 inches 23 inches

Telescope Weight 42 lbs 58 lbs 65 lbs

Tripod/Mount Weight 19 lbs 19 lbs 19 lbs

C11 • Dumbbell Nebula • Image courtesy of Sebastian Voltmer

Specifications are subject to change without notice or obligation.

CGE SERIES

SPECIFICATIONS

CGE 11058/11058-XLT 11059/11059-XLT 11061/11061-XLT 11063/11063-XLT 11064-XLT

Models CGE 800 CGE 925 CGE 1100 CGE 1400 CGE 1400

Specifications

Optical Design Schmidt-Cassegrain Schmidt-Cassegrain Schmidt-Cassegrain Schmidt-Cassegrain Schmidt-Cassegrain

Aperture 8” (203mm) 9.25” (235mm) 11” (279mm) 14” (356mm) 14” (356mm)

Focal Length/Ratio 2032mm F/10 2350mm F/10 2800mm F/10 3910mm F/11 3910mm F/11

Finderscope 6x30 6x30 9x50 9x50 9x50

Mount Computerized Computerized Computerized Computerized Computerized

Equatorial Mount Equatorial Mount Equatorial Mount Equatorial Mount Equatorial Mount

Optical Tube Carbon Fiber Aluminum Carbon Fiber Aluminum Aluminum

Fastar Compatible Yes No No No Yes

Eyepiece 25mm Plossl- 1.25" (81x) 25mm Plossl - 1.25" (94x) 40mm Plossl - 1.25" (70x) 40mm 2" (98x) 40mm 2" (98x)

Star Diagonal 1.25" 1.25" 1.25" 2" with 1.25" adapter 2" with 1.25" adapter

Tripod Adjustable, Carbon Steel Adjustable, Carbon Steel Adjustable, Carbon Steel Adjustable, Carbon Steel Adjustable, Carbon Steel

Software NexRemote control NexRemote control NexRemote control NexRemote control NexRemote control

software w/RS232 cable software w/RS232 cable software w/RS232 cable software w/RS232 cable software w/RS232 cable

Power Supply Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter

Technical Specs

Highest Useful Magnification 480x 555x 660x 840x 840x

Lowest Useful Magnification 29x 34x 40x 51x 51x

Limiting Stellar Magnitude 14 14.4 14.7 15.3 15.3

Resolution: Rayleigh .68 arc seconds .59 arc seconds .50 arc seconds .39 arc seconds .39 arc seconds

Dawes Limit .57 arc seconds .49 arc seconds .42 arc seconds .33 arc seconds .33 arc seconds

Light Gathering Power 843x unaided eye 1127x unaided eye 1593x unaided eye 2581x unaided eye 2581x unaided eye

Field of View :standard eyepiece .62º .53º .71º .51º .51º

Linear FOV (@1000 yds) 32 ft. 28 ft. 38 ft. 27 ft. 27 ft.

Optical Coatings Standard: StarBright Standard: StarBright Standard: StarBright Standard: StarBright Standard: StarBright

Optional: StarBright XLT Optional: StarBright XLT Optional: StarBright XLT Optional: StarBright XLT Optional: StarBright XLT

Secondary Mirror Obstruction 2.7" 3.35" 3.75" 4.5" 4.5"

by Area 11% 13% 12% 10% 10%

by Diameter 34% 36% 34% 32% 32%

Optical Tube Length 17 inches 22 inches 24 inches 31 inches 31 inches

Optical Tube Weight 12.5 lbs 20 lbs 27.5 lbs 45 lbs 45 lbs

Tripod and Pier 41.5 lbs 41.5 lbs 41.5 lbs 41.5 lbs 41.5 lbs

EQ Mount Weight 42 lbs 42 lbs 42 lbs 42 lbs 42 lbs

Counterweight bar 5 lbs 5 lbs 5 lbs 5 lbs 5 lbs

Counterweight 1 x 11 lbs 1 x 25 lbs 1 x 25 lbs 2 x 25 lbs 2 x 25 lbs

CGE Mount Specifications

Motor Drive DC Servo motors DC Servo motors DC Servo motors DC Servo motors DC Servo motors

with encoders, both axes with encoders, both axes with encoders, both axes with encoders, both axes with encoders, both axes

Computerized Hand Control Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character, Double line 16 character,

Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display; Liquid Crystal Display;

19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons 19 LED backlit buttons

Slew Speeds Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec, Nine slew speeds: 4º /sec,

2º /sec, .5º/sec, 64x, 8x, 4x, 2º /sec, .5º/sec, 64x, 8x, 4x, 2º /sec, .5º/sec, 64x, 8x, 4x, 2º /sec, .5º/sec, 64x, 8x, 4x, 2º /sec, .5º/sec, 64x, 8x, 4x,

1x, .5x 1x, .5x 1x, .5x 1x, .5x 1x, .5x

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar

Tracking Modes EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South EQ North & EQ South

Alignment Procedures AutoAlign, 2-Star Align, AutoAlign, 2-Star Align, AutoAlign, 2-Star Align, AutoAlign, 2-Star Align, AutoAlign, 2-Star Align,

Quick Align, 1-Star Align, Quick Align, 1-Star Align, Quick Align, 1-Star Align, Quick Align, 1-Star Align, Quick Align, 1-Star Align,

Recall Last Alignment, Recall Last Alignment, Recall Last Alignment, Recall Last Alignment, Recall Last Alignment,

3-Star Align 3-Star Align 3-Star Align 3-Star Align 3-Star Align

Software Precision 24bit, 0.08 arcsec calculation 24bit, 0.08 arcsec calculation 24bit, 0.08 arcsec calculation 24bit, 0.08 arcsec calculation 24bit, 0.08 arcsec calculation

Database 40,000+ objects, 400 user 40,000+ objects, 400 user 40,000+ objects, 400 user 40,000+ objects, 400 user 40,000+ objects, 400 user

defined programmable defined programmable defined programmable defined programmable defined programmable

objects. Enhanced information objects. Enhanced information objects. Enhanced information objects. Enhanced information objects. Enhanced information

on over 200 objects on over 200 objects on over 200 objects on over 200 objects on over 200 objects

Power Requirements 12 VDC 2.0A 12 VDC 2.0A 12 VDC 2.0A 12 VDC 2.0A 12 VDC 2.0A

Idle Current 215mA 215mA 215mA 215mA 215mA

Slew one axis 600mA 600mA 600mA 600mA 600mA

Slew both axes 850mA (with 1A spikes) 850mA (with 1A spikes) 850mA (with 1A spikes) 850mA (with 1A spikes) 850mA (with 1A spikes)

Internal clock Yes Yes Yes Yes Yes

GPS Compatible CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory CN-16 GPS Accessory

C11 • M51 Whirlpool Galaxy • Image courtesy of Sebastian Voltmer

Specifications are subject to change without notice or obligation.

C20 ASTROGRAPH

SPECIFICATIONS

C20 11095 11096

Models C20 Astrograph C20 Astrograph w/ Permanent Pier

Standard Equipment

Optical Tube 20" (0.51 m) Corrected Dall-Kirkham 20" (0.51 m) Corrected Dall-Kirkham

Mount CGE Pro German Equatorial Mount CGE Pro German Equatorial Mount

Pier/Tripod Super Heavy Duty Portable Tripod Permanent Pier

Computerized Drive Control NexStar Computer Control System NexStar Computer Control System

Software NexRemote Pro NexRemote Pro

Optical Tools Spacing and collimation tools provided Spacing and collimation tools provided

Counterweights 6x 22 lbs counterweights 6x 22 lbs counterweights

Focuser 3.5” Heavy Payload Focuser 3.5” Heavy Payload Focuser

Finderscope 8x50 Finderscope w/ quick release bracket 8x50 Finderscope w/ quick release bracket

Power Supply Car Battery Adapter Car Battery Adapter

C20 ASTROGRAPH SPECIFICATIONS

OTA Specifications

• Design: Coma-Corrected Flat-Field Dall-Kirkham Cassegrain

(Corrected Dall-Kirkham)

• Aperture: 20" (0.51 m)

• Focal Length: 3454 mm; System Focal Ratio: 6.8

• Central Obstruction: 39%

• Optical Performance: Flat field over 42mm film plane, 6 micron RMS

spot size 21mm off axis

• Weight: 140 lbs

• Back focus: 8.9” (from the Focuser mounting surface of the back plate)

Primary

• Diameter: 20.25”; Aperture: 20”; F-ratio: 3

• Material: Precision Annealed Pyrex

• Shape: Prolate Ellipsoid

• Coating: StarBright XLT Multilayer Reflective Coating

Secondary

• Diameter: 7.5”

• Magnification ratio: 2.3x

• Material: Annealed Pyrex

• Coating: StarBright XLT Multilayer Reflective Coating

Lens Group

• Coma correcting, field flattening, doublet lens group

• Lens Diameter: 90mm

• Coating: StarBright

XLT High Transmission Coating

Mount Specifications

• Type: Computerized German Equatorial

• Instrument: Capacity 180 lbs

• RA Gear Diameter: 11.25" Anodized Aluminum

• RA Gear tooth count: 360

• RA Worm: 1.0” diameter stainless steel

• RA Shaft Diameter: 2.5” aluminum to match the thermal expansion of the

RA bearing housing

• RA Axis Bearings: Contains 4 separate bearings, a 9.8” thrust bearing,

8.16” thrust bearing, 4.33” ball bearing, and 4.33” tapered roller bearing

• DEC Gear Diameter: 9"

• DEC Gear tooth count: 360

• DEC Worm Diameter: .745” diameter stainless steel

• DEC Shaft Diameter: 2.5” aluminum to match the thermal expansion

of the DEC bearing housing

• DEC Axis Bearings Contains: 4 separate bearings, a 6.7” thrust bearing,

6.1” thrust bearing, 4.33” ball bearing, and a 4.33” tapered roller bearing

• Latitude Range: 25 - 60 deg (optional latitude wedge for 0 - 90 deg)

• Tracking Accuracy: 5 arcseconds or less without Periodic Error

Correction enabled

• Weight: 156 lbs without counterweight shaft

• RA Axis + Latitude Base: 90 lbs

• Dec Axis with dovetail: 66 lbs

• RA Axis: 64 lbs

• Counterweight shaft: 24 lbs

• Counterweight, individual: 22.5 lbs

Electronics

• Hand Control: NexStar Computerized Hand Control with 40,000+ objects

and flash upgradeable

• Software: NexRemote Pro Precision Telescope Guidance Software

(for PC Control)

• Power Required: 12V DC, 5 amps; Sidereal Tracking = .33 amps

Slew Dual Axis = 2 amps

C20 ASTROGRAPH RECOMMENDED ACCESSORIES

Description Item # Description Item #

Upper Cage Carbon Fiber Light Shroud 62230 PowerTank 17 18777

2” Mirror Diagonal w/ Dielectric Coatings 93530 Focus Motor w/ Electronics Panel 94150

5 Amp Regulated Power Supply 18780

C20 • Eagle Nebula • Image courtesy of Richard Hedrick

Specifications are subject to change without notice or obligation.

OPTICAL TUBE

SPECIFICATIONS

Optical Sec. Mirror

Tubes Focal Optical Obstruction Tube

Model Item # Aperture Tube Length/Ratio Eyepieces Finderscope Mount Coatings (in., dia., area) Length Weight

C8-A 91024 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CGE StarBright

2.5”, 31%, 10% 17” 12.5 lbs

C8-A (XLT) 91024-XLT 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CGE StarBright

XLT 2.5”, 31%, 10% 17” 12.5 lbs

C8-A 91020 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CG-5 StarBright

2.5”, 31%, 10% 17” 12.5 lbs

C8-A (XLT) 91020-XLT 200mm (8”) Aluminum 2032mm f/10 25mm (81x) 6x30 CG-5 StarBright

XLT 2.5”, 31%, 10% 17” 12.5 lbs

C8-CF 91023 200mm (8”) Carbon Fiber 2032mm f/10 25mm (81x) 6x30 CGE StarBright

2.7”, 34%, 11% 17” 12.5 lbs

C8-CF (XLT) 91023-XLT 200mm (8”) Carbon Fiber 2032mm f/10 25mm (81x) 6x30 CGE StarBright

XLT 2.7”, 34%, 11% 17” 12.5 lbs

/4-A 91027 235mm (9

/4”) Aluminum 2350mm f/11 25mm (94x) 6x30 CGE StarBright

3.35”, 36%, 13% 22” 20 lbs

/4-A (XLT) 91027-XLT 235mm (9

/4”) Aluminum 2350mm f/11 25mm (94x) 6x30 CGE StarBright

XLT 3.35”, 36%, 13% 22” 20 lbs

/4-A 91025 235mm (9

/4”) Aluminum 2350mm f/11 25mm (94x) 6x30 CG-5 StarBright

3.35”, 36%, 13% 22” 20 lbs

/4-A (XLT) 91025-XLT 235mm (9

/4”) Aluminum 2350mm f/11 25mm (94x) 6x30 CG-5 StarBright

XLT 3.35”, 36%, 13% 22” 20 lbs

/4-CF 91026 235mm (9

/4”) Carbon Fiber 2350mm f/11 25mm (94x) 6x30 CGE StarBright

3.35”, 36%, 13% 22” 20 lbs

/4-CF (XLT) 91026-XLT 235mm (9

/4”) Carbon Fiber 2350mm f/11 25mm (94x) 6x30 CGE StarBright

XLT 3.35”, 36%, 13% 22” 20 lbs

C11-A 91036 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CGE StarBright

3.75”, 34%, 12% 24” 27.5 lbs

C11-A (XLT) 91036-XLT 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CGE StarBright

XLT 3.75”, 34%, 12% 24” 27.5 lbs

C11-CF 91035 279mm (11”) Carbon Fiber 2800mm f/10 40mm (70x) 9x50 CGE StarBright

3.75”, 34%, 12% 24” 27.5 lbs

C11-CF (XLT) 91035-XLT 279mm (11”) Carbon Fiber 2800mm f/10 40mm (70x) 9x50 CGE StarBright

XLT 3.75”, 34%, 12% 24” 27.5 lbs

C11-A 91067 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CG-5 StarBright

3.75”, 34%, 12% 24” 27.5 lbs

C11-A (XLT) 91067-XLT 279mm (11”) Aluminum 2800mm f/10 40mm (70x) 9x50 CG-5 StarBright

XLT 3.75”, 34%, 12% 24” 27.5 lbs

C14-A 91037 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

4.5”, 32%, 10% 31” 45 lbs

C14-A (XLT) 91037-XLT 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

XLT 4.5”, 32%, 10% 31” 45 lbs

C14-A (XLT) 91038-XLT 355mm (14”) Aluminum 3910mm f/11 40mm (98x) 9x50 CGE StarBright

XLT 4.5”, 32%, 10% 31” 45 lbs

C14 • NGC104 • Image courtesy of Sebastian Voltmer

Specifications are subject to change without notice or obligation.

The foundation of Celestron’s

commitment to product design and

engineering innovation is based

upon its longstanding ability

to manage and control all aspects

of the design-to-market process.

Celestron’s staff of experienced

engineers, industrial designers, and

optical experts are consistently

improving and refining our

products as well as developing

new products and technologies

for our customers.

Celestron’s passion for continuous

product improvement, innovation,

and design excellence ensures

products that provide our customers

with years of enjoyment, reliability,

and, most important — VALUE.

93895-05

The photographs appearing in this catalog are for graphic illustration purposes only. All astro photos shown were taken through

Celestron telescopes but the images on each page do not necessarily represent objects or subjects viewed or photographed

using the products described. Astro photographs are not intended to represent what a user will see during visual observation.

All items designated TM or ® are trademarks or registered trademarks of Celestron or the specific companies designated.

Product designs and specifications are subject to change or modification without obligation or prior notification.

2835 Columbia Street • Torrance, CA 90503 U.S.A. • 310.328.9560

www.celestron.com

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