celestial sphere

Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

English Wikipedia has an article on:
Wikipedia

Noun[edit]

celestial sphere (plural celestial spheres)

  1. (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.

Synonyms[edit]

Translations[edit]