Meade TELESTAR 70AZ-AR Instruction Manual page 12

side up, it is reversed. That means
reading words can be a problem. But
it has no affect on astronomical
objects. If you wish to have a fully
corrected image, check out Meade's
optional Erecting Prism in the Optional
Accessory section.
Optional Accessory
Barlow lens: You can also change
magnification by using a Barlow lens. The
Barlow lens doubles the power of your
telescope. See Fig. 6.
Meade offers a complete line of eyepieces
Meade 70 AZ - AR 3/10/06
STAR CHARTS
Star charts and planispheres are useful for a variety of
reasons. In particular, they are a great aid in planning a
night of celestial viewing.
A wide variety of star charts are available in books, in
magazines, on the internet and on CD Roms. Meade
offers AutoStar Suite software. Contact your local
10
Meade dealer or Meade's Customer Service department
for more information.
Astronomy and Sky and Telescope magazines print star
charts each month for up-to-the-minute maps of the
heavens.
TM
Fig. 6
for your telescope. Most astronomers have
four or five low-power and high power
eyepieces to view different objects and to
cope with different viewing conditions.
Objects move in the eyepiece: If you are
observing an astronomical object (the Moon,
a planet, star, etc.) you will notice that the
object will begin to move slowly through the
telescopic field of view. This movement is
caused by the rotation of the Earth and
makes an object move through the tele-
scope's field of view. To keep astronomical
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objects centered in the field, simply move
the telescope on one or both of its axes—
vertically and/or horizontally as needed—try
using the telescopes coarse and fine
adjustment controls. At higher powers,
eyepiece
astronomical objects will seem to move
through the field of view of the eyepiece
more rapidly.
barlow
Place the object to be viewed at the edge of
the field and, without touching the telescope,
watch it drift through the field to the other
diagonal
side before repositioning the telescope so
mirror
that the object to be viewed is again placed
at the edge of the field, ready to be further
observed.
Vibrations: Avoid touching the eyepiece
while observing through the telescope.
Vibrations resulting from such contact will
cause the image to move. Avoid observing
sites where vibrations cause image
movement (for example, near railroad
tracks). Viewing from the upper floors of a
building may also cause image movement.
Let your eyes "dark-adapt:" Allow five or
ten minutes for your eyes to become "dark
adapted" before observing. Use a red-
filtered flashlight to protect your night vision
when reading star maps, or inspecting the