About Kepler-1678 b
Kepler-1678 b is an uncommon exoplanet. It lies about 2,763.6 light-years from Earth, shines at apparent magnitude 15.02, has an equilibrium temperature near 329 K and spans roughly 3.3 Earth radii.
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.