Colure

Colure

Orange = equinoctial colure
Blue = solstitial colure
G = equinoctial colure
H = solstitial colure

Colure, in astronomy, is either of the two principal meridians of the celestial sphere.

Contents

  • Equinoctial colure 1
  • Solstitial colure 2
  • See also 3
  • References 4

Equinoctial colure

The equinoctial colure is the meridian or great circle of the celestial sphere which passes through the celestial poles and the two equinoxes: the first point of Aries and the first point of Libra.

Solstitial colure

The solstitial colure is the meridian or great circle of the celestial sphere which passes through the poles and the two solstices: the first point of Cancer and the first point of Capricorn.

See also

References