Sternfinder
1
Star Finder (Celestial Globe)
1
Indicateur d’étoiles
Bedienungsanleitung
1
Operating Instructions
1
Mode d’emploi
© 2012 FPM Holding GmbH
22
4. H
ANDLING
4.1 G
ENERAL
4.1.1 S
ETTING THE
S
TAR
G
LOBE ACCORDING TO
THE
O
BSERVATIONAL
P
LACE
When your observational place is situated in the north, then the north pole of
the star globe must coincide with the zero of the horizontal circle. When your
observational place is in the south, then the same applies to the south pole.
To begin with, set the rotatable vertical semicircle with respect to the north-
south direction in such a way that its graduation is above 0° (north) of the
horizontal circle. As the pole latitude is equal to the geographic latitude
4
of the
observational place, shift the pole holder on the vertical semicircle so that its
index mark coincides with the respective latitude
4
, and fix it in this position
(knurled screw 12).
When setting the north (south) latitude
4
, turn the star globe with the effect that
the north (south) pole is lifted in such a way that the spring-leaded locating pin
of the pole holder may be pressed into the pole bore and clamped with the
knurled screw (13) - see Fig. 4.
4.1.2 D
AILY
R
EVOLUTION OF THE STARRY
S
KY VISIBLE FROM
THE
O
BSERVATIONAL
P
LACE
When turning the star globe set according to item 5.1.1 in the east-west
direction, one gets – considered form the centre of the ball – an exact image of
the daily revolution of the starry sky above the horizon (9) at the observational
place.
A stellar body rises when it becomes visible above the eastern half of the
horizon. During this rotation it sets when it disappears below the western half of
the horizon.
The time of rising and setting coincides with the hour reading on the hour
graduation (9b) of the horizon (9).
