3. Constellation Display of Entire Sky at 50
Right ascension scale
Date scale
Zenith
Horizon
Because distortion is minimal in the northern hemisphere, approximately
98.5% of the celestial sphere visible at 50
(The range shown on the constellation dials from -40
declination).
The design varies from one model to another.
5.
or 35
°
Ecliptic
-18 altitude (twilight zone)
Constellation dial setting
Meridian
°
°
or 35
north latitude is displayed.
°
to +90
North
°
Celestial equator
Crown
Time setting
Normal position
°