Astronomy:Kepler-15

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Short description: Star in the constellation Cygnus
Kepler-15
Observation data
Equinox J2000.0]] (ICRS)
Constellation Cygnus
Right ascension  19h 44m 48.1365s[1]
Declination +49° 08′ 24.297″[1]
Apparent magnitude (V) 13.8[2]
Characteristics
Spectral type G6V
Astrometry
Proper motion (μ) RA: −2.780±0.032[1] mas/yr
Dec.: −12.122±0.036[1] mas/yr
Parallax (π)1.3238 ± 0.0203[1] mas
Distance2,460 ± 40 ly
(760 ± 10 pc)
Details
Mass1.018 +0.052−0.044 M☉
Radius0.992 +0.070−0.058 R☉
Luminosity0.92 L☉
Surface gravity (log g)4.32±0.1[3] cgs
Temperature5679±50[3] K
Metallicity0.36±0.07
Rotational velocity (v sin i)2.0 km/s
Age3.7 Gyr
Other designations
Gaia DR2 2134850847813263360, KOI-128, KIC 11359879, 2MASS J19444814+4908244[4]
Database references
SIMBADdata
KICdata

Kepler-15 (also known as KOI-128 or KIC 11359879[5] [6] is a G-type main sequence star with a mass of 1.018 solar masses and a radius of 1.253 solar radius. The star lies at a temperature of 5595 Kelvin. [7]

Planetary system

Kepler-15 is orbited by one known planet named Kepler-15b, a hot jupiter enriched in heavy elements. It was discovered by the transit method in 2011.[2]

The Kepler-15 planetary system[8][9]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 0.66±0.09 MJ 0.05714±0.00093 4.942782±1.3e-06 — 87.44±1.5° 0.96±0.07 RJ

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. ↑ 2.0 2.1 "The Extrasolar Planet Encyclopaedia — Catalog Listing". Extrasolar Planets Encyclopaedia. 2011-08-02. http://exoplanet.eu/star.php?st=Kepler-15#a_publi. 
  3. ↑ 3.0 3.1 Buchhave, Lars A.; Bitsch, Bertram; Johansen, Anders; Latham, David W.; Bizzarro, Martin; Bieryla, Allyson; Kipping, David M. (2018), "Jupiter Analogs Orbit Stars with an Average Metallicity Close to That of the Sun", The Astrophysical Journal 856 (1): 37, doi:10.3847/1538-4357/aaafca, Bibcode: 2018ApJ...856...37B 
  4. ↑ "Kepler-15". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-15. 
  5. ↑ "Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data". 2011. arXiv:1102.0541v1 [astro-ph.EP].
  6. ↑ "TEPCat: Kepler-15". Astro.keele.ac.uk. 2013-02-21. http://www.astro.keele.ac.uk/jkt/tepcat/planets/Kepler-15.html. 
  7. ↑ Endl, Michael et al. (2011). "Kepler-15b: A Hot Jupiter Enriched in Heavy Elements and the First Kepler Mission Planet Confirmed with the Hobby-Eberly Telescope". The Astrophysical Journal Supplement Series 197 (1): 13. doi:10.1088/0067-0049/197/1/13. Bibcode: 2011ApJS..197...13E. 
  8. ↑ "Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data". 2011. arXiv:1102.0541v1 [astro-ph.EP].
  9. ↑ Planet Kepler-15 b on explanet.eu

Coordinates: Sky map 19h 44m 48.14s, +47° 08′ 24.5″



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