Planets: Difference between revisions
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Astronomical objects that meet the official criteria for planet status yet orbit a planet are instead classified as natural satellites or [[moons]]. When the [[barycentre]] of the planet-moon system falls outside the planet, then both bodies are considered planets and part of a double-planet system.<ref>[https://www.universetoday.com/85749/is-the-moon-a-planet/ Universe Today: Is The Moon A Planet?]</ref> | Astronomical objects that meet the official criteria for planet status yet orbit a planet are instead classified as natural satellites or [[moons]]. When the [[barycentre]] of the planet-moon system falls outside the planet, then both bodies are considered planets and part of a double-planet system.<ref>[https://www.universetoday.com/85749/is-the-moon-a-planet/ Universe Today: Is The Moon A Planet?]</ref> | ||
==[[Terrestrial Planet]]s== | ==[[Terrestrial Planet]]s== | ||
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|[[File:Earthlike.png|thumb|center]] | |[[File:Earthlike.png|thumb|center]] | ||
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===Rare features=== | |||
====Tidally Locked==== | |||
[[File:Tidally Locked Earth-like World.jpg|thumb|Tidally Locked Earth-like World]] | |||
Tidally locked planets have a matching rotation period with the host star. One hemisphere has perpetual daylight while the other has only night. The [[Moon]] is also tidally locked to [[Earth]]. | |||
== [[Gas Giant]]s == | == [[Gas Giant]]s == | ||