Astrophysics (index)about

planet type

(methods of classifying planets)

A number of short phrases have come into use to describe various extra-solar planets that could be termed planet types. The planets Earth, Jupiter, and Neptune are often used to designate the size as are super-Earth and mega-Earth, the latter two which may simply designate the size or may also suggest it is rocky.

The adjectives hot and warm are added to designate a planet closer to the star than its habitable zone, e.g., a planet with a week-long orbit around a Sun-like star.

The terms gas planet, liquid planet, and rocky planet are used to designate its primary constituents. Hot typically means very close to the star, perhaps an orbit of a few days and temperatures in thousands of degrees. Warm has been used for planets with close to Earth temperatures or for considerably warmer.

Examples:


(planets,exoplanets,classification)
http://en.wikipedia.org/wiki/List_of_planet_types
http://en.wikipedia.org/wiki/Exoplanet

Referenced by:
water-ice planet

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