Celestron FirstScope 60EQ Instruction Manual page 7

Installing Eyepieces
Once your telescope has been fully assembled, you are ready to attach the accessories.
The accessory adapter is the short black tube with the set screw that allows the attachment of visual accessories (i.e.,
the star diagonal, erect image diagonal, eyepieces, etc.). The accessory adapter comes attached to the focus tube and
is removed only when attaching photographic accessories.
The Star Diagonal
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 diagonal:
1. Loosen the thumbscrew on the accessory adapter until it no longer obstructs the inner diameter.
2. Slide the chrome portion of the star diagonal into the accessory adapter of the focuser.
3. Tighten the thumbscrew on the accessory adapter to hold the diagonal in place.
If you wish to change the orientation to the diagonal, loosen the thumbscrew on the accessory adapter until the
diagonal rotates freely. Move the diagonal to the desired position and tighten the thumbscrew.
T E L E S C O P E O P
T E L E S C O P E O P
Setting Latitude
Loosen the polar axis knob (16) with one hand, while holding the equatorial mount with the other hand. Turn the
latitude adjustment knob located at the rear of the mount to adjust the angle of the mount. Look at the latitude scale
(17) on the side of the mount, then set the mount at the latitude of your location. For example, Los Angeles,
California is located at about 34º. If you don't know your latitude, it can be found on a road atlas of your area.
Once the latitude is set, tighten the polar axis knob. This only has to be done once for any given latitude, and then
readjusted if the telescope is used at a different latitude.
Adjusting and Balancing Declination and Right Ascension
To move the telescope in declination (north/south) there are two options. For large and quick movements, release
the declination knob (22), move the telescope in the direction of the object you want to view, then tighten the knob
when you're near the object. For very small movements and fine adjustments, use the declination cable (18). The
declination cable has a range of about 30°. If you get to the end of this range but haven't yet reached the object
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E R A T I O N — G E
T T I N G S E T U P
T T I N G S E T U P
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