Dictionary Home » Dictionary Definitions » celestial sphere

celestial sphere

an imaginary sphere of infinite extent on which all celestial objects appear to lie: the observer is always at its center

See celestial sphere in American Heritage Dictionary 4

noun
An imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located.

(click for a larger image)

celestial sphere

Learn more about celestial sphere

celestial sphere

link/cite print suggestion box