Kepler-438

Kepler-438
Observation data
Epoch J2000      Equinox J2000
Constellation Lyra
Right ascension 18h 46m 34.9968s[1]
Declination +41° 57′ 03.934″[1]
Apparent magnitude (V) 15.0[2]
Astrometry
Proper motion (μ) RA: −16.649(115) mas/yr[1]
Dec.: −5.614(111) mas/yr[1]
Parallax (π)5.5592 ± 0.0984 mas[1]
Distance590 ± 10 ly
(180 ± 3 pc)
Absolute magnitude (MV)9.55+0.54
−0.44[3]
Details[3]
Mass0.544+0.061
−0.041 M☉
Radius0.52+0.061
−0.038 R☉
Luminosity0.044+0.017
−0.012 L☉
Surface gravity (log g)4.74 cgs
Temperature3748±112 K
Metallicity [Fe/H]0.16±0.14 dex
Age4.4+0.7
−0.8 Gyr
Other designations
KIC 6497146, KOI-3284, 2MASS J18463499+4157039[4]
Database references
SIMBADdata
KICdata

Kepler-438 is a red dwarf in the constellation Lyra, about 590 light years from Earth.[1] It is notable for its planetary system, which includes Kepler-438b, a possibly Earth-size planet within Kepler-438's habitable zone.

  1. ^ a b c d e Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  2. ^ "Notes on Kepler-438 b". Extrasolar Planets Encyclopaedia. Retrieved 21 January 2017.
  3. ^ a b Torres, Guillermo; et al. (2015). "Validation of Twelve Small Kepler Transiting Planets in the Habitable Zone". American Astronomical Society. 225: 438.02. arXiv:1501.01101. Bibcode:2015AAS...22543802C. doi:10.1088/0004-637X/800/2/99. S2CID 8512655.
  4. ^ "KOI-3284". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 January 2017.