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With your telescope set up, you are ready to use it for observing. This section covers visual observing hints for both solar system and deep
sky objects as well as general observing conditions which will affect your ability to observe.
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Often, it is tempting to look at the Moon when it is full. At this time, the face we see is fully illuminated and its light can be overpowering.
In addition, little or no contrast can be seen during this phase.
One of the best times to observe the Moon is during its partial phases (around the time of first
or third quarter). Long shadows reveal a great amount of detail on the lunar surface. At low
power you will be able to see most of the lunar disk at one time. Change to higher power
(magnification) to focus in on a smaller area. Choose the lunar tracking rate from the
NexStar's MENU tracking rate options to keep the moon centered in the eyepiece even at
high magnificatio
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• To increase contrast and bring out detail on the lunar surface, use filters. A yellow filter
works well at improving contrast while a neutral density or polarizing filter will reduce overall surface brightness and glare.
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Other fascinating targets include the five naked eye planets. You can see Venus go through its lunar-like phases. Mars can reveal a host of
surface detail and one, if not both, of its polar caps. You will be able to see the cloud belts of Jupiter and the great Red Spot (if it is visible at
the time you are observing). In addition, you will also be able to see the moons of Jupiter as they orbit the giant planet. Saturn, with its
beautiful rings, is easily visible at moderate power.
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• Remember that atmospheric conditions are usually the limiting factor on how much
planetary detail will be visible. So, avoid observing the planets when they are low on
the horizon or when they are directly over a source of radiating heat, such as a rooftop or
chimney. See the "Seeing Conditions" section later in this section.
• To increase contrast and bring out detail on the planetary surface, try using Celestron
eyepiece filters.
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Although overlooked by many amateur astronomers, solar observation is both rewarding and fun. However, because the Sun is so bright,
special precautions must be taken when observing our star so as not to damage your eyes or your telescope.
Never project an image of the Sun through the telescope. Because of the folded optical design, tremendous heat build-up will result
inside the optical tube. This can damage the telescope and/or any accessories attached to the telescope.
For safe solar viewing, use a Celestron solar filter (see Optional Accessories section of manual) that reduces the intensity of the Sun's light,
making it safe to view. With a filter you can see sunspots as they move across the solar disk and faculae, which are bright patches seen near
the Sun's edge.
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