ecliptic

ecliptic is a   Noun

Definition:

[1] A great circle of the celestial sphere, making an angle with the equinoctial of about 23º 28`. It is the apparent path of the sun, or the real path of the earth as seen from the sun.

[2] A great circle drawn on a terrestrial globe, making an angle of 23º 28` with the equator; -- used for illustrating and solving astronomical problems.

Synonyms: