Quasi-Satellite: Type of satellite in sync with another orbit
A quasi-satellite is an astronomical object that crosses a planet's orbit during its own orbit.
A quasi-satellite's orbit around the Sun takes exactly the same time as the planet's orbit. Its eccentricity is different from the eccentricity of the planet. The orbits of quasi-satellites are unstable and over time they will break free from the planet's gravity.
This article uses material from the Wikipedia Simple English article Quasi-satellite, which is released under the Creative Commons Attribution-ShareAlike 3.0 license ("CC BY-SA 3.0"); additional terms may apply (view authors). Content is available under CC BY-SA 4.0 unless otherwise noted. Images, videos and audio are available under their respective licenses.
®Wikipedia is a registered trademark of the Wiki Foundation, Inc. Wiki Simple English (DUHOCTRUNGQUOC.VN) is an independent company and has no affiliation with Wiki Foundation.