There are others, such as (1) Ecliptic coordinates in which the Ecliptic plane is the celestial equator; (2) galactic coordinates where the celestial equator is defined by the plane of our Milky ...

The ecliptic is the path the sun, moon, and planets take across the sky as seen from Earth. It defines the plane of the Earth's orbit around the sun. The name "ecliptic" comes from the fact that ...

Each point is the direction from which a meteor approaches Earth, projected onto the celestial sphere in sun-centered ecliptic coordinates (with stars in gray). Hover to get the meteor number, and ...