Kepler-277
Kepler-277 is a large yellow star in the constellation of Lyra. It is 1.69 R☉ and 1.12 M☉, with a temperature of 5946 K, a metallicity of -0.315 [Fe/H], and an unknown age.[1] For comparison, the Sun has a temperature of 5778 K, a metallicity of 0.00 [Fe/H], and an age of about 4.5 billion years. The large radius in comparison to its mass and temperature suggest that Kepler-277 could be a subgiant star.
Planetary system
Kepler-277b
Kepler-277b (KOI-1215.01) is the second most massive and third-largest rocky planet ever discovered, with a mass close to that of Saturn, It was discovered in 2014. Kepler-277b orbits close to its host star, with one orbit lasting 17.324 days.[1]
Kepler-277c
Kepler-277c (KOI-1215.02) is the third most massive and second-largest rocky planet ever discovered, with a mass about 64 times that of Earth. It was discovered in 2014. Kepler-277c orbits close to its host star, with one orbit lasting 33.006 days.[1]
See also
References
- "Kepler-277 c CONFIRMED PLANET OVERVIEW PAGE". NASA Exoplanet Archive. Retrieved 2018-01-20.