NEW WORLDS ATLAS
HAT-P-21 b
HAT-P-21 b is a gas giant exoplanet that orbits a G-type star. Its mass is 4.87 Jupiters and it takes 4.1 days to complete one orbit of its star. Its discovery was announced in 2010.
PLANET TYPE
Gas Giant
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DISCOVERY DATE
2010
|
MASS
4.87 Jupiters
|
PLANET RADIUS
1.11 x Jupiter
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ORBITAL RADIUS
Unknown
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ORBITAL PERIOD
4.1 days
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ECCENTRICITY
0.23
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DETECTION METHOD
Transit
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