Bresser ASTRO PLANETARIUM Operating Instructions Manual page 16

Sky projection with the astro
planetarium
Press the button for opening the slide drawer
d . The tray will open by itself (Fig. 2).
Set one of the two slide plates 1) into the slide
plate holder 1! .
Fig. 5
IMPORTANT: Be careful that the protrusions
on the holder 1! catch on the notches of the
slide plates 1) (Fig. 5).
Now you must enter the time and date for the
night sky that you would like to see with your
Astro-Planetarium (observation time span). To
do this, turn the knob for setting the date f until
the desired date appears under the time on the
time scale g (Fig. 6).
16
G
INFO: The stars, planets, etc, are always dif-
ferently positioned in the sky because the
Earth is rotating. That is what it is not always
possible to see all objects. For this reason, it is
important that you always set the correct date
and time before starting a projection with your
Astro-Planetarium.
01:00 00:00 23:00
30 minutes
Fig. 7
Explanation of the time scale g
Only the time span between 8:00 pm and 2:00
am is depicted. During this time, it is possible to
see stars in the sky no matter what the season
(night sky). Each bar on the scale corresponds
to 30 minutes (Fig. 7).
2 days
APR
Explanation of the knob for setting the date F
Fig. 6
With the date scale of the knob, you can set the
365 days of the year according to the month.
At 30 days per month, each bar on the scale
corresponds to 2 days (Fig. 8). The long lines
always represent the last day of the previous
month; underneath, the respective following
month is always given.
Some examples of correct time and date set-up
Example 1:
You would like to have your Astro-Planetarium
project the night sky for July 7, 12:00 am (mid-
night). Turn the knob for the date set-up F until
the bar for "12:00 am" is situated above on the
time scale G between the two short bars befo-
re the "10" in the month of July (JUL) (Fig. 9).
02:00 01:00 00:00 23:00 22:00 21:00 20:00
20 10 20
JUN JUL
Fig. 9
30 Apr
26 28 2 4
10
MAY
Fig. 8
2 4 6 8
10
JUL
10 20 10 20 10
AUG SEP
7/7