Bresser AstroPlanetarium Mode D'emploi page 27

INFO: The stars, planets, etc, are
always differently 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-Planeta-
rium.
Explanation of the time scale
01:00 00:00 23:00
H
30 minutes
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 corres-
ponds to 30 minutes (Fig. 7).
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Explanation of the knob for setting
F
the date
2 days
I
APR
With the date scale of the knob, you
can set the 365 days of the year ac-
cording to the month. At 30 days per
g
month, each bar on the scale corre-
sponds 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
02:00 01:00 00:00 23:00 22:00 21:00 20:00
20 10 20
JUN JUL
j
30 Apr
26 28 2 4
10
MAY
2 4 6 8
10
JUL
10 20 10 20 10
AUG SEP
7/7
Example 1:
You would like to have your Astro-
Planetarium project the night sky for
July 7, 12:00 am (midnight). Turn the
knob for the date set-up
bar for "12:00 am" is situated above
G
on the time scale between the
two short bars before 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 10 20 10 20 10
NOV DEC JA N FEB
1)
Example 2:
You would like to project the night
sky for December 30, 10:30 pm
with your Astro-Planetarium. Turn the
knob for the date set-up
bar for "10:30 pm" is situated above
G
on the time scale just before the
long bar for the month of January
(JAN (Fig. 9).
F
until the
28/12
20
JAN
30/12
F
until the