Bushnell DEEP SPACE SERIES 78-9519 用户手册

•

  Loosen the silver screws located at the opposite end of the 

 Now, attach

the

 to the two silver posts found on the 

. The first post is

located just above the 

, the second post is located below the 

 

•

  Locate the 

 and 

 Loosen the

thumb screw located on the 

 and slide the 

onto the 

 and tighten thumb screw to secure the

. Thread the 

 into the hole located

directly below the 

 Make sure that the shaft

is securely  locked into mount.

 

•

 

Locate

 and 

 Carefully place 

into 

 as shown 

(fig. b)

The equatorial mount is designed to move in any direction. It can be set to

allow manual controls to track the movements of celestial bodies across the

sky. This is referred to as diurnal movement; movement of celestial bodies in

the direction opposite to that of the earth’s rotation and is around the earth’s

axis.

By aligning the telescope’s polar axis at celestial North, you will place  the

telescope in parallel with the earth’s axis and thus be able to locate stars in

the sky based on star atlas information. To compensate for your position on

earth, the polar axis is set in one of three ways:

•

  Set up the telescope at night. Loosen the 

 and

rotate the telescope around the declination axis until  the  arrow  on  the

declination scale points to 90 degrees. Tighten the 

.

The telescope is now roughly in parallel with the polar axis.

 

•

  Loosen the 

 and turn the telescope until the objective end faces due north. This

can be done by approximating the location of the pole star (Polaris or North Star) or by the use of a

compass. True North is then found by directing the telescope at Polaris, as magnetic North is slightly

away from true North.

 

•

  Look up the latitude of your area in any geographical atlas. Loosen the 

 and set

the latitude scale to the correct latitude for your area. Aim the 

 at Polaris. You will

probably notice that Polaris is not dead center in the 

 field of view. This is probably

because your telescope is not absolutely level with the ground. Loosen the 

again and turn the telescope so that it is directly aimed at Polaris. Tighten both the 

and 

. Polaris is 1 degree of the North celestial pole. Therefore, the sighting of stars

will have to be slightly adjusted as you locate them in the heavens.

fig b.

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