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ENGLISH | 7
90GT | WiFi TELESCOPE
additional reSourceS
How to Contact Celestron
For assistance with this product, please contact our Technical Support department at (310) 328-9560, or you may
contact Celestron Support online by going to our website (www.celestron.com) and clicking on the “Support” tab at the
top of the page. Here, you may search through a comprehensive database of frequently asked questions or submit a
request for assistance.
Written correspondence may be sent to:
Celestron
2835 Columbia Street
Torrance, CA 90503
For more information on the Cosmos program, please direct your browser to
celestron.com/cosmos
International Dark-Sky Association
The International Dark-Sky Association (IDA) is a non-profit organization dedicated to preserving and protecting
the nighttime environment through environmentally responsible outdoor lighting. They work to raise awareness
of light pollution and to promote public policy with local governments to adopt more efficient and responsible
lighting practices. For more information on this organization, please check out their web site at www.darksky.org
Optical Design
Aperture
Focal Length
Focal Ratio
Lens Type
Optical Coatings
Eyepiece / Magnification
Finderscope
Resolution
Light Gathering Power
Highest Useful Magnification
Lowest Useful Magnification
Limiting Stellar Magnitude
Tripod
Warranty
Optical Tube Length
Total Telescope Kit Weight
Refractor
90 mm (3.5”)
910 mm
f/10.1
Achromat, doublet
Fully-coated antireflection
25 mm Kellner (1.25”) / 36x; 10 mm Kellner (1.25”) / 91x
StarPointer Red-Dot Finderscope
Rayleigh: 1.54 arc seconds / Dawes Limit: 1.29 arc seconds
165x the unaided eye
213x
13x
12.3
Adjustable-height aluminum
2-Years
37.2 inches (94.5cm)
14.2 pounds (6.4 kg)
SPeciFicationS
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