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Meade Goto-Kit for equatorial EQ-5 Mounts Manual

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Instruction Manual
Telescope setup
Balancing the telescope
In order for the telescope to be stable on the tripod and also for it to move
smoothly, it must be balanced. To balance the telescope, unlock the Right
Ascension or R.A. lock (17, Fig. 1a). When this axis is unlocked, the telescope
pivots on the R.A. axis. Later in the procedure, you will also unlock the Declination
or Dec. lock (1, Fig. 1a). When unlocked, the telescope pivots on the Dec. axis.
Most of the motion of the telescope takes place by moving about these two
axes, separately or simultaneously. Try to become familiar with these locks and
observe how the telescope moves on each axis. To obtain a fine balance of the
telescope, follow the method below:
1. Firmly hold the optical tube secure so that it cannot accidentally swing
freely. Loosen the R.A. lock (17, Fig. 1a). The optical tube now moves freely
about the R.A. axis. Rotate the telescope so that the counterweight shaft (6,
Fig. 1a) is parallel (horizontal) to the ground.
REMARK!
The LXD-75 mount comes with a 4,5 kg counterweight. In case that you do
not suceed in balancing the mount., it could be necessary to use a second
or third counterweight . Those are available as an optional accessory. Make
sure however that a higher total weight affects stability of your complete
setup negatively.
2. Unlock the counterweight lock knob and slide the counterweight (5, Fig. 1a)
along the counterweight shaft until the telescope remains in one position
without tending to drift down in either direction. Then re-tighten the coun-
terweight lock knob, locking the counterweight in position.
3. Again, hold the optical tube so that it cannot accidentally swing freely. Lock
the R.A. lock (17, Fig. 1a), and unlock the Dec. lock (1, Fig. 1a). The tele-
scope now is able to move freely about the Dec. axis. Loosen the cradle ring
lock knobs so that the main tube slides easily back and forth in the cradle
rings. Move the main tube in the cradle rings until the telescope remains in
one position without tending to drift down in either direction. Re-lock the
Dec. lock (1, Fig. 1a).
The telescope is now properly balanced on both axes. Next, the viewfinder must
be aligned.
Observing by Moving the Telescope Manually
After the telescope is assembled and balanced as described previously, you
are ready to begin manual observations. View easy-to-find terrestrial objects
such as street signs or traffic lights to become accustomed to the functions and
operations of the telescope. For the best results during observations, follow the
suggestions below:
• When you wish to locate an object to observe, first loosen the telescope’s
R.A. lock (17, Fig. 1a) and Dec. lock (1, Fig. 1a). The telescope can now turn
freely on its axes. Unlock each axis separately and practice moving your
telescope. Then practice with two unlocked axes at the same time. It is very
important to practice this step to understand how your telescope moves,
as the movement of an equatorial mount is not intuitive.
•
Use the aligned viewfinder to sight-in on the object you wish to observe. When the
object is centered in the viewfinder’s crosshairs, re-tighten the R.A. and Dec. locks.
• A telescope’s eyepiece magnifies the image formed by the telescope’s main
optics. Each eyepiece has a focal length, expressed in millimeters, or “mm.”
The smaller the focal length, the higher the magnification. For example, an
eyepiece with a focal length of 9mm has a higher magnification than an eye-
piece with a focal length of 26mm.
Low-power magnification eyepieces offer a wide field of view, bright, high-
contrast images, and relief of eye strain during long observing sessions. To
observe an object with a telescope, always start with a low power eyepiece
such as the SP 26mm supplied with your telescope. When the object is
centered and focused in the eyepiece, switch to a higher power eyepiece to
enlarge the image as much as practical for prevailing viewing conditions.
• Once centered, an object can be focused by turning one of the knobs of the
focusing mechanism. Notice that when observing astronomical objects, the
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