Astronomy
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The definition of a '''planet''' is a celestial body whose core is not hot enough to maintain [[nuclear fusion]] (otherwise it is a [[star]]). If it is in orbit around another planet it is a [[satellite]] (or moon), not a planet. The planet you are most familiar with is [[Earth]]! A planet can have many features, such as [[Mars]] and [[Venus]], whose landscapes are magnificent! It also has many types of gases.
 
The definition of a '''planet''' is a celestial body whose core is not hot enough to maintain [[nuclear fusion]] (otherwise it is a [[star]]). If it is in orbit around another planet it is a [[satellite]] (or moon), not a planet. The planet you are most familiar with is [[Earth]]! A planet can have many features, such as [[Mars]] and [[Venus]], whose landscapes are magnificent! It also has many types of gases.
   
A [[Habitable planet]] isa planet where the temperatures are right for liquid water to exist.
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A [[Habitable planet]] is a planet where the temperatures are right for liquid water to exist.
   
 
An [[Exoplanet]] is a planet outside the [[Solar System]].
 
An [[Exoplanet]] is a planet outside the [[Solar System]].
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[[Category:Glossary]]

Latest revision as of 03:07, 6 January 2018

The definition of a planet is a celestial body whose core is not hot enough to maintain nuclear fusion (otherwise it is a star). If it is in orbit around another planet it is a satellite (or moon), not a planet. The planet you are most familiar with is Earth! A planet can have many features, such as Mars and Venus, whose landscapes are magnificent! It also has many types of gases.

A Habitable planet is a planet where the temperatures are right for liquid water to exist.

An Exoplanet is a planet outside the Solar System.