Bedienungsanleitung Celestron CPC Deluxe 800 HD - 11007 (Seite 25 von 50) (Englisch)

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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 solar lter that reduces the intensity of the

Sun’s light, making it safe to view. With a lter you can see sunspots as

they move across the solar disk and faculae, which are bright patches

seen near the Sun’s edge.

Solar Observing Hints

• The best time to observe the Sun is in the early morning or late

afternoon when the air is cooler.

• To center the Sun without looking into the eyepiece, watch the

shadow of the telescope tube until it forms a circular shadow.

• To ensure accurate tracking, be sure to select the solar tracking rate.

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Other fascinating targets include the ve 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.

Planetary Observing Hints

• 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 “Seeing Conditions” later in this section.

• To increase contrast and bring out detail on the planetary surface,

try using Celestron eyepiece lters.

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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 rst 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. The optional Reducer/Corrector

lens allows for breath-taking views of the entire lunar disk when used

with a low power eyepiece. Change to higher power (magnication) to

focus in on a smaller area. Choose the lunar tracking rate from the CPC’s

MENU tracking rate options to keep the Moon centered in the eyepiece

even at high magnications.

Lunar Observing Hints

To increase contrast and bring out detail on the lunar surface, use lters.

A yellow lter works well at improving contrast while a neutral density

or polarizing lter will reduce overall surface brightness and glare.

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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 aect

your ability to observe.

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