What is Right ascension?
'''Right ascension''' (abbreviated '''RA'''; symbol '''α''') is the [[astronomy|astronomical]] word for one of the two [[coordinate]]s of a point on the [[celestial sphere]] when using the [[equatorial coordinate system]]. It is the celestial counterpart to [[longitude]]. The other coordinate is the [[declination]]. The moon, planets and stars all have their own right ascension. Many of them are listed in an [[almanac]]. Using arithmetic, the object’s right ascension and declination indicate where to look in the sky to see the object. == Related pages == * [[Sidereal time]] {{Sci-stub}} [[Category:Astronomy]]