About GJ 3021 b
GJ 3021 b is a rare exoplanet. It lies about 57.3 light-years from Earth, shines at apparent magnitude 6.59, has spectral type G6 V and has an equilibrium temperature near 350 K.
Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.