About Kepler-88 d
Kepler-88 d is an uncommon exoplanet. It lies about 1,229.2 light-years from Earth, shines at apparent magnitude 13.21, has spectral type G6 V and has an equilibrium temperature near 159 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.