絶ぜっ対たい等とう級きゅう

noun

absolute magnitude

Astronomical term for the intrinsic brightness of a celestial object as seen from a standard distance of 10 parsecs. Contrasts with 視等級 (apparent magnitude).

See also: 視等級

• 絶ぜっ対たい等とう級きゅうは、天てん体たいの本ほん当とうの明あかるさを表あらわす尺しゃく度どだ。

  Absolute magnitude is a measure of the true brightness of a celestial body.