Latitude, Celestial: Angular distance measured north or south of the plane of the ecliptic.
Latitude, Geographic: Angular distance measured on Earth north or south of the equator.
Longitude, Celestial: The distance in degrees (arc) from 0° Aries eastward to any given point that intersects the ecliptic. Celestial longitude is measured from 0° to 360°. For example, 10° Taurus is expressed as . . . View Full Definition
Celestial Sphere: The apparent sphere of infinite radius having the earth as its center. All heavenly bodies (planets, stars, etc.) appear on the 'inner surface' of this sphere and the sun moves along the ecliptic.
Celestial Equator: The projection of the plane of the geographical equator upon the celestial sphere.
Celestial Body: A physical form which exists in space; such as a planet.