Koordinatensystem der Himmelskugel 
celestial coordinate system 
Himmelsnordpol 
North celestial pole 
Deklination 
declination 
Ekliptik 
ecliptic 
Rektaszension 
right ascension 
Himmelsmeridian 
celestial meridian 
Himmelskugel 
celestial sphere 
Himmelsäquator 
celestial equator 
Erdkugel 
terrestrial sphere 
Frühlingsäquinoktium 
vernal equinox 
Himmelssüdpol 
South celestial pole 
Äquator 
Equator 
Inklination 
inclination 