Meade 70AZ-AR instruction manual Observing

Models: 70AZ-AR

1 20
Download 20 pages 9.1 Kb
Page 8
Image 8
OBSERVING

Tel70AZAR_5 3/28/07 10:09 AM Page 8

OBSERVING

6Observe during the daytime: Try out

your telescope during the daytime at first. It is easier to learn how it operates and how to observe when it is light.

Pick out an easy object to observe: A distant mountain, a large tree, a lighthouse or skyscraper make excellent targets. Point the optical tube so it lines up with your object.

Unlock the lock knobs: To move the telescope, you will need to unlock the horizontal (6) and vertical (5) lock knobs (just rotate to unlock or lock; when locking, only tighten to a “firm feel,” do not overtighten).

Use the red dot viewfinder: If you have not done so, align the red dot viewfinder (2) with the telescope’s eyepiece (1) as described earlier. Look through the red dot viewfinder until you can see the object. It will be easier to locate an object using the red dot viewfinder rather than locating with the eyepiece. Line up the object using the viewfinders red dot.

Look through the eyepiece: Once you have

the object lined up in the viewfinder, look through the optical tube’s eyepiece. If you have aligned your viewfinder, you will see the object in your eyepiece.

Focus: Look through the eyepiece and practice focusing on the object you have chosen.

Try out the coarse and fine adjustment controls: Practice using the fine adjustment control (16 to move the telescope. These can come in very handy, especially when you wish to move the telescope in very small (fine control) steps.

Observe the Moon: When you feel comfortable with the viewfinder, the eyepieces, the locks and the adjustment controls, you will be ready to try out the telescope at night. The Moon is the best object to observe the first time you go out at night. Pick a night when the Moon is a crescent. No shadows are seen during a full Moon, making it appear flat and uninteresting.

Look for different features on the Moon. The

most obvious features are craters. In fact you can see craters within craters. Some craters have bright lines about them. These are called rays and are the result of material thrown out of the crater when it was struck by a colliding object. The dark areas on the Moon are called maria and are composed of lava from the period when the Moon still had volcanic activity. You can also see mountain ranges and fault lines on teh Moon.

Use a neutral density filter (often called a “moon filter”) when observing the Moon. Neutral density filters are available from

TOO MUCH POWER?

Can you ever have too much power? If the type of power you’re referring to is eyepiece magnification, yes you can! The most common mistake of the beginning observer is to “overpower” a telescope by using high magnifications which the telescope’s aperture and atmospheric conditions cannot reasonably support. Keep in mind that a smaller, but bright and well-resolved image is far superior to one that is larger, but dim and poorly resolved. Powers above 400x should be employed only under the steadiest atmospheric conditions.

Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.

Page 8
Image 8
Meade 70AZ-AR instruction manual Observing