The Kepler-1821 system contains 1 exoplanet. It is located 2608.27 light years away from the solar system.
|Mass||0.95 solar masses|
|Radius||0.88 solar radiae|
|Stellar Metallicity||0.14 decimal exponent|
|Age||0.4 billion years|
At more than 10 Earth masses, Kepler-1821 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
|Mass||7.240 Earth masses|
|Density||2.280 grams per cubic centimeter|
|Radius||2.592 Earth radiae|
|Semi-major Axis||0.1244 AU|
|Orbital Period||16.458 days|
|Discovery Telescope||0.95 m Kepler Telescope|
|Discovery Instrument||Kepler CCD Array|
|Reference||Valizadegan et al. 2021|