geostationary orbit

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A circular orbit 35 900 km above the Earth's equator, frequently used for communications satellites. A satellite in geostationary orbit moves at the same rate as the Earth spins, completing one revolution in 24 hours, so that it always remains at the same point above the Earth's equator. See also synchronous orbit.

Subjects: Earth Sciences and Geography — Astronomy and Astrophysics.

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