Kepler-107 is a star about 1,694 light-years (519 parsecs) away in the constellation Cygnus. No stellar companions were found as of 2016.

Planetary system

Kepler-107 has four known planets discovered in 2014. A giant impact is the likely origin of two planets in the system. Kepler-107 c is more than twice as dense (about 12.6 g/cm3) as the innermost exoplanet Kepler-107 b (about 5.3 g/cm3).

The Kepler-107 planetary system
Companion (in order from star)MassSemimajor axis (AU)Orbital period (days)EccentricityInclinationRadius
b3.8+1.8 −1.7 M🜨0.04544±0.000363.1800218±0.0000029<0.1089.05±0.67°1.536±0.025 R🜨
c10.0±2.0 M🜨0.06064±0.000484.901452±0.0<0.08089.49+0.34 −0.44°1.597±0.026 R🜨
d<7.7 M🜨0.08377±0.000657.95839±0.00012<0.1187.55+0.64 −0.48°0.860±0.060 R🜨
e14.1±3.3 M🜨0.12638±0.0009914.749143±0.000019<0.1089.67±0.22°2.903±0.035 R🜨