Kepler-18

Kepler-18
Observation data
Epoch J2000      Equinox J2000
Constellation Cygnus
Right ascension 19h 52m 19.0688s[1]
Declination +44° 44′ 46.808″[1]
Apparent magnitude (V) 14.0
Characteristics
Spectral type G7
Astrometry
Proper motion (μ) RA: −1.436(14) mas/yr[1]
Dec.: −20.341(14) mas/yr[1]
Parallax (π)2.2804 ± 0.0168 mas[1]
Distance1,430 ± 10 ly
(439 ± 3 pc)
Details[2]
Mass0.972 ± 0.042 M☉
Radius1.108 ± 0.051 R☉
Luminosity0.93 L☉
Surface gravity (log g)4.32 ± 0.12 cgs
Temperature5383 ± 44 K
Metallicity [Fe/H]0.19 ± 0.06 dex
Rotational velocity (v sin i)<4 km/s
Age10.0 ± 2.3 Gyr
Other designations
KOI-137, KIC 8644288,2MASS J19521906+4444467, Gaia DR2 2079295583282164992[3]
Database references
SIMBADdata

Kepler-18 is a star with almost the same mass as the Sun in the Cygnus constellation.

  1. ^ a b c d Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  2. ^ Cochran, William D.; et al. (2011). "Kepler 18-b, c, and d: A System Of Three Planets Confirmed by Transit Timing Variations, Lightcurve Validation, Spitzer Photometry and Radial Velocity Measurements". The Astrophysical Journal Supplement Series. 197 (1): 7. arXiv:1110.0820. Bibcode:2011ApJS..197....7C. doi:10.1088/0067-0049/197/1/7. S2CID 16505452.
  3. ^ "Kepler-18". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 January 2018.