Meade Instruments Infinity 70AZ - Manual (Page 12)

Meade offers a complete line of eye-
pieces and Barlows 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
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 adjust-
ment controls. At higher powers, astronom-
ical objects will seem to move through the
field of view of the eyepiece more rapidly.
Place the object to be viewed at the edge
of the field and, without touching the tele-
scope, watch it drift through the field to the
other side before repositioning the telescope
so 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. Vibra-
tions 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-fil-
tered flashlight to protect your night vision
when reading star maps, or inspecting the
telescope. Do not use a regular flash-light or
turn on other lights when observing with a
group of other astronomers. You can make
your own red filtered flashlight by taping red
cellophane over a flashlight lens.
Viewing through windows: Avoid setting
up the telescope inside a room and observ-
ing through an opened or closed window
pane. Images may appear blurred or distort-
ed due to temperature differences between
10
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 TM software. Contact your
local 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.
inside and outside air. Also, it is a good idea
to allow your telescope to reach the ambient
(surrounding) outside temperature before
starting an observing session.
When to observe: Planets and other
objects viewed low on the horizon often lack
sharpness—the same object, when ob-
served higher in the sky, will appear sharper
and have greater contrast. Try reducing
power (change your eyepiece) if your image
is fuzzy or shimmers. Keep in mind that
a bright, clear, but smaller image is more
interesting than a larger, dimmer, fuzzy one.
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.
VERIFY
90 Degree
Erect image
diagonal is
included.