Kepler-186
Star in the constellation Cygnus / From Wikipedia, the free encyclopedia
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Kepler-186 is a main-sequence M1-type dwarf star, located 177.5 parsecs (579 light years) away in the constellation of Cygnus. The star is slightly cooler than the sun, with roughly half its metallicity. It is known to have five planets, including the first Earth-sized world discovered in the habitable zone: Kepler-186f.[6] The star hosts four other planets discovered so far, though they all orbit interior to the habitable zone.
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Cygnus |
Right ascension | 19h 54m 36.6535s[2] |
Declination | +43° 57′ 18.026″[2] |
Apparent magnitude (V) | 15.29[3] |
Characteristics | |
Evolutionary stage | Main sequence |
Spectral type | M1V[4] |
Astrometry | |
Proper motion (μ) | RA: 2.171(18) mas/yr[2] Dec.: −4.363(20) mas/yr[2] |
Parallax (π) | 5.6336 ± 0.0169 mas[2] |
Distance | 579 ± 2 ly (177.5 ± 0.5 pc) |
Details | |
Mass | 0.544 ± 0.02[4] M☉ |
Radius | 0.523 ± 0.02[4] R☉ |
Luminosity (bolometric) | 0.055 +0.011 −0.006[4] L☉ |
Temperature | 3755 ± 90[4] K |
Metallicity [Fe/H] | −0.26 ± 0.12[4] dex |
Rotation | 34.404±0.075 days[5] |
Age | 4.0 ± 0.6[4] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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