Kepler-1638
Kepler-1638 is a G-type main-sequence star located about 5,000 light years away in the constellation of Cygnus. One known exoplanet has been found orbiting the star: Kepler-1638b.As of January 2021, Kepler-1638 is the farthest star with a known exoplanet orbiting in the habitable zone.
Constellation where Kepler-1638 is located | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 41m 55.76712s |
| Declination | +48° 31′ 27.9998″ |
| Apparent magnitude (V) | 14.769±0.206 |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | G4V |
| Apparent magnitude (J) | 13.550±0.023 |
| Apparent magnitude (H) | 13.204±0.024 |
| Apparent magnitude (K) | 13.138±0.035 |
| Variable type | Planetary transit, rotationally variable |
| Astrometry | |
| Proper motion (μ) | RA: −5.092 mas/yr Dec.: +5.839 mas/yr |
| Parallax (π) | 0.6462 ± 0.0165 mas |
| Distance | 5,000 ± 100 ly (1,550 ± 40 pc) |
| Details | |
| Mass | 0.9700+0.0490 −0.0590 M☉ |
| Radius | 0.9500+0.1660 −0.0790 R☉ |
| Temperature | 5710.0+96.696 −111.431 K |
| Metallicity [Fe/H] | −0.0100+0.1410 −0.1880 dex |
| Age | 4.37+4.19 −2.59 Gyr |
| Other designations | |
KOI-5856, KIC 11037818, 2MASS J19415577+4831280 | |
| Database references | |
| SIMBAD | data |
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