Planets: Difference between revisions

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There are two main categories of '''planets''': [[Terrestrial Planet]]s and [[Gas Giant]]s. Some types of Terrestrial Planets support ~~life~~ or meet the conditions ~~necessary~~ for [[terraforming]]. [[Ships]] equipped with the [[Planetary Approach Suite]] may [[Planetary Landings|land on the surface]] of ~~certain~~ Terrestrial Planets.

There are two main categories of '''planets''': [[Terrestrial Planet]]s and [[Gas Giant]]s. Some types of Terrestrial Planets support [[Species|lifeforms]] or meet the conditions for [[terraforming]]. [[Ships]] equipped with the [[Planetary Approach Suite]] may [[Planetary Landings|land on the surface]] of Terrestrial Planets with 0 to tenuous atmospheres. Some planets have a [[Planetary Ring System|planetary ring system]].

The term planet refers to celestial ~~bodies orbiting~~ a [[star]] with a [[gravity]] in a specific range. The gravity of a planet ~~has to~~ be strong enough to hold fluids and plastic solids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and makes the body round, and low enough to prevent nuclear processes to start ~~as in the stars~~.

The term planet refers to a celestial body that orbits a [[star]] with a [[gravity]] in a specific range. The gravity of a planet must be strong enough to hold fluids and plastic solids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and it makes the body round, and low enough to prevent stellar nuclear processes to start.

Some astronomical objects that meet the official criteria for planet status yet also ~~happen to~~ 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 ~~would be~~ 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>

Some astronomical objects that meet the official criteria for planet status yet also 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==

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-There are two main categories of '''planets''': [[Terrestrial Planet]]s and [[Gas Giant]]s. Some types of Terrestrial Planets support life or meet the conditions necessary for [[terraforming]]. [[Ships]] equipped with the [[Planetary Approach Suite]] may [[Planetary Landings|land on the surface]] of certain Terrestrial Planets.
+There are two main categories of '''planets''': [[Terrestrial Planet]]s and [[Gas Giant]]s. Some types of Terrestrial Planets support [[Species|lifeforms]] or meet the conditions for [[terraforming]]. [[Ships]] equipped with the [[Planetary Approach Suite]] may [[Planetary Landings|land on the surface]] of Terrestrial Planets with 0 to tenuous atmospheres. Some planets have a [[Planetary Ring System|planetary ring system]].
-The term planet refers to celestial bodies orbiting a [[star]] with a [[gravity]] in a specific range. The gravity of a planet has to be strong enough to hold fluids and plastic solids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and makes the body round, and low enough to prevent nuclear processes to start as in the stars.
+The term planet refers to a celestial body that orbits a [[star]] with a [[gravity]] in a specific range. The gravity of a planet must be strong enough to hold fluids and plastic solids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and it makes the body round, and low enough to prevent stellar nuclear processes to start.
-Some astronomical objects that meet the official criteria for planet status yet also happen to 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 would be 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>
+Some astronomical objects that meet the official criteria for planet status yet also 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==

Planets: Difference between revisions

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