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HD 200964 b

Extrasolar Planet in Equuleus

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Proper Name	None
Designation	HD 200964 b
Classification	Gas Giant
Orbital Period	614 days
Mean Distance from HD 200964	239 million km 1.6 AU
Mass	1.85 x Jupiter
Diameter	0.85 x Jupiter
Temperature	373 K (100°C)
Parent star	HD 200964, yellow subgiant in Equuleus
Other planets in this system	HD 200964 c, gas giant
Notes	One of two known gas giant planets orbiting the yellow star HD 200964 in Equuleus. HD 200964 b is usually the inner of the two planets, at a distance from its star comparable with Mars' distance from the Sun. Its companion planet HD 200964 c follows an eccentric course, however, and for a brief period each orbit it actually comes closer to its star than HD 200964 b.

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