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Gliese 1214 b

Astronomical discovery
GJ 1214 b is an exoplanet that orbits the star GJ 1214, and was discovered in December 2009. Its parent star is 48 light-years from the Sun, in the constellation Ophiuchus. As of 2017, GJ 1214 b is the most likely known candidate for being an... Wikipedia
Discoverer: David Charbonneau
Radius: 10,613 mi
Discovered: December 16, 2009
Gravity: 8.924 m/s²
Distance to Earth: 40 light years
Density: 2.2 g/cm³
Albedo: 0.51±0.06 (Bond)