Description: L'équateur céleste est défini comme le grand cercle de la sphère céleste, dont le plan est perpendiculaire à l'axe de rotation de la Terre. Il s'agit essentiellement de la projection de l'équateur terrestre sur la sphère céleste.

Related Terms:

• Coordonnées célestes
• Sphère Céleste

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".