Kepler-27

Kepler-27 is a star in the northern constellation of Cygnus, the swan. It is located at the celestial coordinates: Right Ascension , Declination . With an apparent visual magnitude of 15.855, this star is too faint to be seen with the naked eye. In 2024, Kepler-27 was discovered to be a binary star with a red dwarf companion 1.975 arcseconds away.

==Planetary system== The planetary system of Kepler-27 comprising two small gas giants on eccentric orbits was discovered in late 2011. The planets Kepler-27b and Kepler-27c have equilibrium temperatures of 610 K and 481 K, respectively. In 2021, a third, sub-Neptune-sized planet was confirmed, orbiting closer in than the other two planets.