Exoplanet Catalog
HD 40307 b
HD 40307 b is a super Earth exoplanet that orbits a K-type star. Its mass is 4 Earths, it takes 4.3 days to complete one orbit of its star, and is 0.0468 AU from its star. Its discovery was announced in 2009.
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PLANET TYPE
Super Earth
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DISCOVERY DATE
2009
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MASS
4 Earths
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PLANET RADIUS
1.83 x Earth
(estimate) |
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ORBITAL RADIUS
0.0468 AU
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ORBITAL PERIOD
4.3 days
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ECCENTRICITY
0.2
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DETECTION METHOD
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