Description: Der Himmelsäquator ist definiert als der Großkreis (d.h. der größtmögliche Kreis auf der Oberfläche einer Kugel) der Himmelskugel. Seine Ebene liegt senkrecht zur Rotationsachse der Erde. Im Grunde genommen erhält man den Himmelsäquator, wenn man den Erdäquator auf die Himmelskugel projiziert.

Zugehörige Glossarbegriffe:

• Himmelskoordinaten
• Himmelskugel

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

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