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HAT-P-1 System

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Exoplanetary Scratchpad

[SysBP Img]

A stellar binary believed to contain the planet with the biggest known diameter and the least dense. This would have been only the second planet with such a low density. Later measurements showed it wasn't that inflated, and has the expected radius for a highly irradiated core-less Hot Jupiter.

HAT-P-1 System Web PagesEdit

HAT-P-1 System In the NewsEdit

Puffed Up Planet Discovered (2006)Edit

Planet Not as Bloated As First Thought (Jul 2007)Edit

http://fr.arxiv.org/abs/0707.1908

Hubble Observes 10 Hot Jupiters (Dec 2015)Edit

See WASP-12 System, WASP-6 System, WASP-31 System, WASP-33 System, HD 189733 System, HAT-P-12 System, WASP-17 System, WASP-19 System, HAT-P-1 System, HD 209458 System

Planet b FactoidsEdit

  • Does not have a core
  • Has a radius of 1.4 Jupiters, but only half the mass
  • Has a quarter of the density of water

See AlsoEdit

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