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HAT-P-1 b

Proper NameNone
DesignationHAT-P-1 b
ClassificationGas Giant
Orbital Period4.5 days
Mean Distance from HAT-P-18.2 million km
0.05 AU
Mass0.52 x Jupiter
Diameter1.22 x Jupiter
Temperature1,182 K (909°C)
Parent starHAT-P-1, yellow dwarf star in Lacerta
Other planets in this systemNone known
NotesThe first extrasolar planet catalogued by the HATNet Exoplanet Survey is a gas giant, slightly larger but less dense than Jupiter, in a close orbit around a Sun-like yellow star.

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