Exoplanet Catalog
K2-257 b
K2-257 b is a terrestrial exoplanet that orbits an M-type star. Its mass is 0.498 Earths, it takes 1.6 days to complete one orbit of its star, and is 0.0216 AU from its star. Its discovery was announced in 2018.
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PLANET TYPE
Terrestrial
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DISCOVERY DATE
2018
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MASS
0.498 Earths
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PLANET RADIUS
0.83 x Earth
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ORBITAL RADIUS
0.0216 AU
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ORBITAL PERIOD
1.6 days
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ECCENTRICITY
0.0
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DETECTION METHOD
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