Observing the moon, Lunar observing hints, Observing the planets – Celestron XLT series User Manual
Page 30: Planetary observing hints, Celestial observing
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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
lar 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 gr
amount of detail on the lunar surface. At low power you will be able t
see most of the lunar disk at one time. For the Schmidt-Cassegra
telescope, the optional Reducer/Corrector lens allows for breath-takin
views of the entire lunar disk when used with low power eyepiece
Change to optional eyepieces for higher power (magnification) to focus
in on a smaller area.
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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
urn, with its beautiful
•
Remember that atmospheric conditions are usually the
a source of radiating
ing Conditions" section later in this section.
lanetary surface, try using Celestron eyepiece filters.
To increase contrast and bring out detail on the lunar surface, use optional filters. A yellow filter works well at
improving contrast while a neutral density or polarizing filter will reduce overall surface brightness and glare.
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. Sat
rings, is easily visible at moderate power.
Planetary Observing Hints
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
heat, such as a rooftop or chimney. See the "See
•
To increase contrast and bring out detail on the p