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keep the Moon centered. Consult your local newspaper or a current astronomy magazine to find out when

the Moon is visible.

Observing the Planets

This same method used to observe the Moon applies to viewing the planets. You can see Venus go through

its lunar-like phases. Mars reveals 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 this gas giant. Saturn, with its

beautiful ring system, is easily visible at moderate power. All you need to know is when and where to

look. Most astronomy publications tell where the planets can be found in the sky each month.

Observing Deep Sky Objects

Deep sky objects are simply those objects outside the boundaries of our solar system. They include star

clusters, planetary nebulae, diffuse nebulae, double stars, and other galaxies outside our own Milky Way.

Unless your telescope is mounted onto a computerized mount, you will need to know where to look in the

sky for these objects. The Celestron Sky Maps (#93722) will help you locate the brightest deep sky objects.

Once you start observing deep sky objects, there are a few things to remember. First, most deep sky objects

have a large angular size. Therefore, low to moderate power is all you need to see them. Second, visually

they are too faint to reveal any color that is common to photographs. Instead, they have a black and white

appearance. And lastly, because of their low surface brightness, they should be observed from a dark sky

location. Light pollution around large urban areas washes out most nebulae making them difficult, if not

impossible, to see. An LPR (Light Pollution Reduction) Filter (#94126A) is available for use with 1 1/4"

eyepieces to allow urban use of the 80EDF for looking at nebulae.

Photographing the Moon

After looking at the night sky for awhile you may want to try photographing it. If you do, start with a nice,

bright object like the Moon. To photograph the Moon:

1. Attach your telescope to a stable platform like the Celestron Alt-Az Tripod (#93607).

2. Load your camera with film that has a moderate-to-fast speed (i.e., high ISO rating). Faster films are

more desirable when the Moon is a crescent. When the Moon is full, and at its brightest, slower films

are more desirable. If photographing during the full phase, use a yellow filter to reduce the light

intensity and to increase contrast.

3. Center the Moon in the field of your telescope.

4. Set the shutter speed to the appropriate setting (see below).

5. Trip the shutter using a cable release so as not to shake the camera and telescope.

Lunar Phase

ISO 50

Crescent

1/8

Quarter

1/30

Full

1/125

ISO 100

ISO 200

ISO 400

1/15

1/60

1/125

1/250

1/500

1/1000

1/2000