Celestial equator

The celestial equator is a great circle on the imaginary celestial sphere, which could be constructed by inflating the Earth's equator until it intersects with said sphere. The celestial equator is inclined by ~23.5°, with respect to the ecliptic plane; a result of axial tilt.

Related Topics:
Great circle - Celestial sphere - Earth - Equator - Inclined - Ecliptic plane - Axial tilt

~ ~ ~ ~ ~ ~ ~ ~ ~ ~