Enjoying EarthSky? Subscribe.

37,000 subscribers and counting ...

By in
on Oct 27, 2011

seasons_ecliptic_375

The great circles of the ecliptic and celestial equator intersect at the equinox points, and the great circle of the galactic equator near the solstice points

The great circles of the ecliptic and celestial equator intersect at the equinox points, and the great circle of the galactic equator near the solstice points