Kepler-12

Kepler-12
Observation data
Epoch J2000      Equinox J2000
Constellation Cygnus
Right ascension 19h 04m 58.427s[1]
Declination +50° 02′ 25.25″[1]
Apparent magnitude (V) 13.4[2]
Astrometry
Proper motion (μ) RA: -2.4[1] mas/yr
Dec.: 11.2[1] mas/yr
Characteristics
Spectral type G0[2]
Details[2]
Mass1.166±0.054 M☉
Radius1.483±0.029 R☉
Temperature5947±100 K
Metallicity [Fe/H]0.07 (± 0.04) dex
Rotational velocity (v sin i)2.7±0.5[3] km/s
Age4.0±0.4 Gyr
Other designations
KIC 11804465, KOI-20, GSC 03549-00844, 2MASS J19045842+5002253[3]
Database references
SIMBADdata
KICdata

Kepler-12 is a star with planet Kepler-12b in orbit.

Characteristics

Kepler-12, known also as KIC 11804465 in the Kepler Input Catalog, is an early G-type to late F-type star. This corresponds strongly with a sunlike dwarf star nearing the end of the main sequence, and is about to become a red giant.[4] Kepler-12 is located 600 parsecs (1,957 light years) away from Earth. The star also has an apparent magnitude of 13.438, which means that it cannot be seen from Earth with the unaided eye.[2]

The star is slightly more massive, slightly more iron-rich and slightly hotter than the Sun. However, Kepler-12 is larger, with a radius of 1.483 times the Sun's radius.[2]

References

  1. 1 2 3 4 Zacharias, N. (2009). "Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)". VizieR On-line Data Catalog. Bibcode:2009yCat.1315....0Z.
  2. 1 2 3 4 5 "Notes on Kepler-12 b". Retrieved 29 December 2016.
  3. 1 2 "Kepler-12". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 December 2016.
  4. ↑ Fortney, J.; Demory, B. (2011). "Discovery and Atmospheric Characterization of Giant Planet Kepler-12b: An Inflated Radius Outlier". Astrophysical Journal. Bibcode:2011ApJS..197....9F. arXiv:1109.1611v1 Freely accessible. doi:10.1088/0067-0049/197/1/9.

Coordinates: 19h 04m 58s, +50° 02′ 25″


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