Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of geosynchronous satellite

Translation: satellite géosynchrone

Definition: An earth satellite whose average sidereal revolution period is equal to the earth’s sidereal rotation period, or about 23 h 56 min.

Other Definition: None

Synonym: None