Exoplanet Catalog
HD 209458 b
HD 209458 b is a gas giant exoplanet that orbits an F-type star. Its mass is 0.73 Jupiters, it takes 3.5 days to complete one orbit of its star, and is 0.04707 AU from its star. Its discovery was announced in 1999.
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PLANET TYPE
Gas Giant
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DISCOVERY DATE
1999
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MASS
0.73 Jupiters
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PLANET RADIUS
1.39 x Jupiter
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ORBITAL RADIUS
0.04707 AU
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ORBITAL PERIOD
3.5 days
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ECCENTRICITY
0.0
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DETECTION METHOD
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