Puffy planet: Difference between revisions

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Puffy planets, also called fluffy planets, is a generic and seldom used term to describe gas giant planets that have a density less than 0.5 g/cm³.^{[citation needed]} Puffy planets often orbit close to their stars because the intense heat from the star and internal heat within the planet bloat the planet's atmosphere as in thermal expansion. There are four puffy planets that have been detected by the transit method in order of discovery: HAT-P-1b, COROT-1b, TrES-4, and WASP-17b. Some hot Jupiters detected by the radial velocity method that can be so-called puffy planets.

The varying mass can affect properties of puffy planets. The massive planets (>2 Jupiters) are not puffy because the massive planets have strong gravity that keeps their density high and thus their volume low.^{[citation needed]} The less massive planets (<2 Jupiters) can be puffy because of lower densities.^{[citation needed]}

External links

Puffy 'cork' planet would float on water
Puffy planet poses pretty puzzle (BBC News 15 September 2006)
Puffy Planet discovered: It's largest world outside our solar system

This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.

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-'''Puffy planets''', also called '''fluffy planets''', are a class of [[gas giant]] [[planet]]s that have density less than 0.5 g/cm³{{Citation needed|date=March 2010}}. Puffy planets often orbit close to their [[star]]s because the intense heat from the star and [[internal heat]] within the planet bloat the planet's [[atmosphere]] as in [[thermal expansion]]. There are four puffy planets that have been detected by the [[Methods of detecting extrasolar planets#Transit method|transit method]] in order of discovery: [[HAT-P-1b]], [[COROT-1b]], [[TrES-4]], and [[WASP-17b]]. Some [[hot Jupiter]]s detected by the [[Methods of detecting extrasolar planets#Radial velocity|radial velocity method]] that can be so-called puffy planets.
+'''Puffy planets''', also called '''fluffy planets''', is a generic and seldom used term to describe [[gas giant]] [[planet]]s that have a density less than 0.5 g/cm³.{{Citation needed|date=March 2010}} Puffy planets often orbit close to their [[star]]s because the intense heat from the star and [[internal heat]] within the planet bloat the planet's [[atmosphere]] as in [[thermal expansion]]. There are four puffy planets that have been detected by the [[Methods of detecting extrasolar planets#Transit method|transit method]] in order of discovery: [[HAT-P-1b]], [[COROT-1b]], [[TrES-4]], and [[WASP-17b]]. Some [[hot Jupiter]]s detected by the [[Methods of detecting extrasolar planets#Radial velocity|radial velocity method]] that can be so-called puffy planets.
-The varying mass can affect properties of puffy planets. The massive planets (>2 Jupiters) are not puffy because the massive planets have strong [[gravity]] that keeps their density high and thus their volume low{{Citation needed|date=November 2009}}. The less massive planets (<2 Jupiters) can be puffy because of lower densities{{Citation needed|date=November 2009}}.
+The varying mass can affect properties of puffy planets. The massive planets (>2 Jupiters) are not puffy because the massive planets have strong [[gravity]] that keeps their density high and thus their volume low.{{Citation needed|date=November 2009}} The less massive planets (<2 Jupiters) can be puffy because of lower densities.{{Citation needed|date=November 2009}}
 == External links ==
 * [http://www.space.com/scienceastronomy/060914_cork_planet.html Puffy 'cork' planet would float on water]
+* [http://news.bbc.co.uk/2/hi/sci/tech/5346998.stm Puffy planet poses pretty puzzle] (BBC News 15 September 2006)
 * [http://www.encyclopedia.com/doc/1P2-1635427.html Puffy Planet discovered: It's largest world outside our solar system]
-{{DEFAULTSORT:Puffy Planet}}
 [[Category:Types of planet]]
 [[Category:Gas giant planets|*]]
 {{exoplanet-stub}}