right ascension

Noun

 * 1)  The angular distance east of the ; the celestial equivalent of longitude.
 * 2) * 1988, Peter Duffett-Smith, Practical Astronomy with Your Calculator, page 35,
 * The hour-angle, H, and the right ascension, α, are related by the simple formula
 * H = LST − α,
 * where LST is the local sidereal time.
 * H = LST − α,
 * where LST is the local sidereal time.

Usage notes
Along with declination, right ascension determines the direction of a point on the celestial sphere in the equatorial coordinate system.

It is alternatively defined as the ascension (point on the celestial equator which rises with a specified celestial object) as seen from any point on the Earth's equator, where the celestial equator intersects the horizon at a right angle.

Translations

 * Arabic: مُطَّلَعً مُسْتَقِيم
 * Chinese:
 * Mandarin:
 * Czech: rektascenze
 * Dutch:
 * Finnish:
 * German: Rektaszension
 * Japanese:
 * Korean: 적경
 * Persian:, مطلع مستقیم
 * Polish:
 * Russian: прямое восхождение
 * Serbo-Croatian:
 * Swedish:
 * Turkish:
 * Vietnamese: