Bresser Junior Astro Planetarium Instrucciones De Uso página 16

Example 2:
You would like to project the night sky for Decem-
ber 30, 10:30 pm with your Astro-Planetarium.
Turn the knob for the date set-up (5) until the bar
for "10:30 pm" is situated above on the time sca-
le (6) just before the long bar for the month of
January (JAN (Fig. 9).
Fig. 10
02:00 01:00 00:00 23:00 22:00 21:00 20:00
20 10 20 10 20 10 20
NOV DEC JA N FEB
Once you have set the observation period, you
are ready to start projecting. Close the slide disc
holder (11) and press the on/off/ button (2) to
start the projection.
You can make further adjustments to the pro-
jection angle for an optimal image on the wall
or ceiling by moving the planetarium sphere (1)
in the pedestal (9). In figure 11, you can see the
possibilities for projecting onto the ceiling (a) or
the wall (b).
16
Fig. 11
28/12
By turning the focus knob (8), you can obtain the
20
JAN
correct focus for image projection (Fig. 12).
10
30/12
IMPORTANT: The correct distance between the
objective lens and the wall or ceiling is between
1.8 and 2 m. If you have tried to focus the image,
but it still remains fuzzy, you have probably not
chosen the correct projection distance.
Press the sleep mode button (4) to set the time
(30 or 60 minutes) for activating the automatic
shut-down function. The corresponding LED
lamp will light up. At the designated time, the de-
vice will switch itself to sleep mode (also energy
saving mode). If you wish to turn off the sleep
mode, press the button (4) until the LED lamp
goes out. In order to save energy, the projection
automatically shuts down after 2 hours.
When the astro planetarium is not in use, the de-
a
b
vice should be turned off simply by pressing the
on/off/pause button (2). Remove the batteries
from the device if it is out of use for a long period
(1 week or more).
Using the image rotation function
Press the button for left-sided rotation (17) to
make the night sky projection move in an auto-
matic, anti-clockwise direction. This correspods
to the natural motion sequence of the northern
hemisphere. You can influence the speed of
movement by pressing the button again. In to-
Fig. 12
tal, there are 6 different speed settings. The LED
light flashes according to the set speed. Press
the on/off/pause button (2) to stop the rotation.
Similarly, image rotation can also be activated
and adjusted to the southern hemisphere. In this
case, press the button for right-sided rotation
(16). All other functions are identical to those for
left-sided rotation.