(astronomy) An abstract sphere of infinite radius which serves as the imaginary backdrop for celestial objects, and of which the visible sky is one hemisphere.

(music) A musical instrument consisting principally of a set of graduated steel plates struck with hammers that are activated by a keyboard.

An imaginary point situated where a planet's axis intersects the celestial sphere.

plural of celesta

plural of celestial body

Alternative form of celestine

In a celestial manner; concerning the heavens

(astronomy) The dynamics of celestial bodies subject to mutual gravitational attraction.

(astronomy) A great circle on the celestial sphere, coincident with the plane of earth's equator.

plural of celestial equator