Celestial coordinate systemW
Celestial coordinate system
AlmucantarW
Almucantar
AzimuthW
Azimuth
BarycenterW
Barycenter
Circumpolar starW
Circumpolar star
ColureW
Colure
DeclinationW
Declination
Earth-centered inertialW
Earth-centered inertial
EclipticW
Ecliptic
Ecliptic coordinate systemW
Ecliptic coordinate system
EquatorW
Equator
Celestial equatorW
Celestial equator
Equatorial coordinate systemW
Equatorial coordinate system
First Point of AriesW
First Point of Aries
Galactic coordinate systemW
Galactic coordinate system
Galactic quadrantW
Galactic quadrant
Geocentric modelW
Geocentric model
HorizonW
Horizon
Horizontal coordinate systemW
Horizontal coordinate system
Hour angleW
Hour angle
Hour circleW
Hour circle
Meridian (astronomy)W
Meridian (astronomy)
NadirW
Nadir
Northern celestial hemisphereW
Northern celestial hemisphere
Orbital poleW
Orbital pole
Celestial poleW
Celestial pole
Position angleW
Position angle
Right ascensionW
Right ascension
Rotating reference frameW
Rotating reference frame
Southern celestial hemisphereW
Southern celestial hemisphere
Celestial sphereW
Celestial sphere
Subsolar pointW
Subsolar point
Vertical circleW
Vertical circle
ZenithW
Zenith
ZodiacW
Zodiac