This is an old revision of this page, as edited by Lir (talk | contribs) at 17:40, 31 October 2002. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 17:40, 31 October 2002 by Lir (talk | contribs)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Right ascension (RA) is an astronomical term associated with the equatorial coordinate system. RA is comparable to longitude, measured from a zero point known as the First Point of Aries. RA is measured in hours, minutes, and seconds; with one hour equal to 15 degrees.
See also: declination