Blue = solstitial colure
H = solstitial colure
Colure, in astronomy, is either of the two principal meridians of the celestial sphere.[1]
Colure, in astronomy, is either of the two principal meridians of the celestial sphere.[1]
The equinoctial colure is the meridian or great circle of the celestial sphere which passes through the celestial poles and the two equinoxes:[1] the first point of Aries and the first point of Libra.
The equinoctial colure passes through the following constellations:
The solstitial colure is the meridian or great circle of the celestial sphere which passes through the poles and the two solstices:[1] the first point of Cancer and the first point of Capricorn. There are several stars closely aligned with the solstitial colure: Pi Herculis, Delta Aurigae, and Theta Scorpii. This makes the solstitial colure point towards the North Celestial Pole and Polaris.
The solstitial colure passes through the following constellations:
