Bresser JUNIOR 70/900 NG Mode D'emploi page 22

The telescope is now properly oriented. This
procedure is necessary for tracking celestial
bodies.
6. Tracking- and/or Observation Position
Loosen the vertical clamp (8) and tilt the te-
lescope tube 90° downwards. Loosen the
horizontal clamp (33) and turn the telescope
180° to the right or left, until the objective
lens is pointing in the direction of the sky.
Retighten all clamps so that you can track
with the flexible shaft.
The manual operation of the counterweight
axis (right ascension axis, R.A. axis) via the
flexible shaft (26) allows for the rotation of the
Earth in such a way that the positioned object
always stays in the eyepiece field of vision.
If you would like to switch to another object,
loosen the clamps, swing with the tube in the
proposed direction and retighten the clamps.
The fine adjustment is then performed with
the flexible shafts (14, 15) (Figures 1).
7. Finder
Your telescope is now roughly aligned and set
up.
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In order to obtain a comfortable observation
position, carefully loosen the screw on the
tube clamp (8) (Figure 1) so that you can turn
the telescope tube. Bring the eyepiece and
the finderscope into a position from which
you can observe comfortably.
The fine adjustment happens with the help of
the finderscope (2). Look through the finder
and try to hone in on, for instance, the North
Star (Figure 16), positioning it in the middle of
the finder's crosshairs (Figure 17). For the ex-
act adjustment, the shaft of the counterweight
axis (26) as well as the shaft of the declination
axis (27) will be helpful.
8. Observation
After you have located the North Star in the
finder, you will be able to recognize the North
Star when you look through the eyepiece of
the telescope. If needed, you can angle the
telescope even more exactly toward the star
(with the help of the flexible shafts), or you
can adjust the focus with the focus knob (7)
(Figure 1).
Additionally, you can now switch to a higher
magnification by changing the eyepiece (to a
smaller focal width). Please be aware that the
magnification of the stars is barely perceptib-
le.
1^ 1&
TIP:
Eyepieces are lens systems designed for your
eye. In an eyepiece, the clear image that is ge-
nerated in the focal point of a lens is captured
(in other words, made visible) and magnified
still more. Eyepieces with various focal widths
are necessary in order to achieve various de-
grees of magnification. Begin each observati-
on with an eyepiece with a low magnification
(= large focal width, e.g. 20 mm).