Table of Contents
Advertisement
T
h
e
H
a
n
d
C
o
n
T
h
e
H
a
n
d
C
o
The hand control is located on the side of the fork arm and can be removed and used remotely or used while attached to the
fork. The hand control attaches to the fork arm by resting on two posts, located on the bottom of the hand control cradle,
and a clip inside the fork arm. To remove the hand control from the fork arm cradle, gently lift the hand control upwards
and pull out. To return the hand control into the fork arm, lower the hand control into the cradle so that the two holes in the
bottom of the hand control go over the posts on the bottom of the cradle, and the opening in the back of the hand control
slides over the clip inside the fork arm.
Once the telescope is powered up, use the hand control to move the optical tube to the horizontal position
•
Press UNDO. This will bypass the normal alignment procedures and will still allow you to control the telescope.
•
Use the Up arrow directional button to move the telescope tube until it is roughly parallel to the ground. This will
make it more convenient to attach the necessary accessories as well as remove the front lens cover and install batteries
when they are needed.
You are now ready to attach the included visual accessories onto the telescope optical tube.
T
T
h
h
e
e
S
S
t
t
a
a
r
r
D
D
i
i
a
a
g
g
The star diagonal diverts the light at a right angle from the light path of the telescope. For astronomical observing, this
allows you to observe in positions that are more comfortable than if you were to look straight through. To attach the star
diagonal:
1.
Turn the thumbscrew on the visual back until its tip no longer extends
into (i.e., obstructs) the inner diameter of the visual back.
2.
Slide the chrome portion of the star diagonal into the visual back.
3.
Tighten the thumbscrew on the visual back to hold the star diagonal in
place.
If you wish to change the orientation of the star diagonal, loosen the
thumbscrew on the visual back until the star diagonal rotates freely
Rotate the diagonal to the desired position and tighten the thumbscrew.
T
h
e
E
y
e
p
i
e
c
e
T
h
e
E
y
e
p
i
e
c
e
The eyepiece, or ocular, is the optical element that magnifies the image
focused by the telescope. The eyepiece fits into either the visual back
directly or the star diagonal. To install the eyepiece
1.
Loosen the thumbscrew on the star diagonal so it does not obstruct the inner diameter of the eyepiece end of the diagonal.
2.
Slide the chrome portion of the eyepiece into the star diagonal.
3.
Tighten the thumbscrew to hold the eyepiece in place.
To remove the eyepiece, loosen the thumbscrew on the star diagonal and slide the eyepiece out.
Eyepieces are commonly referred to by focal length and barrel diameter. The focal length of each eyepiece is printed on the
eyepiece barrel. The longer the focal length (i.e., the larger the number) the lower the eyepiece power or magnification; and
the shorter the focal length (i.e., the smaller the number) the higher the magnification. Generally, you will use low-to-
moderate power when viewing. For more information on how to determine power, see the section on "Calculating
Magnification."
Barrel diameter is the diameter of the barrel that slides into the star diagonal or visual back. The NexStar uses eyepieces
with a standard 1-1/4" barrel diameter.
t
r
o
l
n
t
r
o
l
o
o
n
n
a
a
l
l
Figure 3-2 - The visual accessories
9
Eyepiece
Star
Diagonal
Visual
Back
Hide quick links:
Advertisement
Table of Contents
