| Kieli | Käännökset |
|---|---|
| bulgaria | небесен екватор |
| esperanto | ĉielekvatoro |
| kreikka | ουράνιος ισημερινός (ouránios isimerinós) |
| ranska | équateur céleste |
| ruotsi | himmelsekvator |
| saksa | Himmelsäquator |
| suomi | taivaanekvaattori |
| tanska | ækvator |
| tšekki | nebeský rovník |
| venäjä | небе́сный эква́тор (nebésnyi ekvátor) |
| Monikko | celestial equators |
(astronomy) A great circle on the celestial sphere, coincident with the plane of Earth's Equator.
The celestial equator is currently inclined by about 23.44° to the ecliptic plane. The image shows the relations between Earth's axial tilt (or obliquity), rotation axis, and orbital plane.