Geosynchronous orbit: Difference between revisions
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[[File:Geosynchronous1.GIF|thumb|A diagram of a geosynchronous orbit]] | |||
A '''geosynchronous orbit''' is an orbit around a planet with an orbital period matching the planet's sidereal rotation period. The term geosynchronous can be used to describe any orbital pattern with a period equal to that of its orbiting body, and in the same direction as the parent's rotation, but is specifically used for orbits with no inclination and a semimajor axis of equal length to the minor axis (i.e. circular). Satellites in geosynchronous orbits appear to maintain their longitude, while their latitude oscillates in a 24-hour period. The geosynchronous orbit over the equator is called the '''geostationary orbit'''. Satellites in the geostationary orbit appear stationary relative to the planet's surface. | |||
==Uses== | |||
[[Orbital defense platform]]s in particular make use of geosynchronous orbits to protect the planet they orbit from attack.<ref>'''[[Halo 2]]''', campaign level ''[[The Armory]]''</ref> The terminus stations of [[space elevator]]s are also anchored to a geosynchronous, near-geostationary orbit.<ref>[http://halo.xbox.com/en-us/intel/theuniverse/locations/gallery/space-tether/e9b2f438-9b5b-477e-8e52-d4e6801e9d5b '''Halo Waypoint''': ''Space Tether'']</ref> | |||
==Sources== | |||
{{Ref/Sources}} | |||
[[Category:Astronomy]] | |||
Latest revision as of 11:47, April 12, 2023
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There is more information available on this subject at Geosynchronous orbit on the English Wikipedia. |
A geosynchronous orbit is an orbit around a planet with an orbital period matching the planet's sidereal rotation period. The term geosynchronous can be used to describe any orbital pattern with a period equal to that of its orbiting body, and in the same direction as the parent's rotation, but is specifically used for orbits with no inclination and a semimajor axis of equal length to the minor axis (i.e. circular). Satellites in geosynchronous orbits appear to maintain their longitude, while their latitude oscillates in a 24-hour period. The geosynchronous orbit over the equator is called the geostationary orbit. Satellites in the geostationary orbit appear stationary relative to the planet's surface.
Uses[edit]
Orbital defense platforms in particular make use of geosynchronous orbits to protect the planet they orbit from attack.[1] The terminus stations of space elevators are also anchored to a geosynchronous, near-geostationary orbit.[2]
Sources[edit]
- ^ Halo 2, campaign level The Armory
- ^ Halo Waypoint: Space Tether
