Kepler-15

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Kepler-15
Observation data
Epoch J2000       Equinox J2000
Constellation Cygnus [1]
Right ascension 19h 44m 48.1365s [2]
Declination +49° 08′ 24.298″ [2]
Apparent magnitude  (V)13.8 [3]
Characteristics
Evolutionary stage subgiant [2]
Spectral type G8IV-V [4]
Astrometry
Proper motion (μ)RA: −2.755(15) mas/yr [2]
Dec.: −12.129(17) mas/yr [2]
Parallax (π)1.3181±0.0139  mas [2]
Distance 2,470 ± 30  ly
(759 ± 8  pc)
Details
Mass 1.018 +0.052
−0.044 [5]   M☉
Radius 0.992 +0.070
−0.058 [5]   R☉
Luminosity 0.82 [5]   L☉
Surface gravity (log g)4.32±0.1 [6]   cgs
Temperature 5,679±50 [6]   K
Metallicity 0.36±0.07 [5]
Rotational velocity (v sin i)2.0 [5]  km/s
Age 3.7 [5]   Gyr
Other designations
Gaia DR2 2134850847813263360, KOI-128, KIC 11359879, 2MASS J19444814+4908244 [7] [8] [9]
Database references
SIMBAD data
KIC data
Comparative sizes of Sun and Kepler-15 Kepler-15.jpg
Comparative sizes of Sun and Kepler-15

Kepler-15 (also known as KOI-128 or KIC 11359879 is a G-type subgiant with a mass of 1.018 solar masses and a radius of 1.253 solar radius.

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. [3]

The Kepler-15 planetary system [8] [10]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 0.66±0.09  MJ 0.05714±0.000934.942782±1.3e-06—87.44±1.5° 0.96±0.07  RJ

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific . 99 (617): 695. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 "The Extrasolar Planet Encyclopaedia — Catalog Listing". Extrasolar Planets Encyclopaedia . 2011-08-02. Archived from the original on 2012-01-21. Retrieved 2013-02-28.
  4. ↑ Frasca, A.; Molenda-Żakowicz, J.; De Cat, P.; Catanzaro, G.; Fu, J. N.; Ren, A. B.; Luo, A. L.; Shi, J. R.; Wu, Y.; Zhang, H. T. (2016). "Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra". Astronomy and Astrophysics. 594. arXiv: 1606.09149 . Bibcode:2016A&A...594A..39F. doi:10.1051/0004-6361/201628337.
  5. 1 2 3 4 5 6 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. Bibcode: 2011ApJS..197...13E . doi: 10.1088/0067-0049/197/1/13 . hdl: 2152/42925 .
  6. 1 2 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, arXiv: 1802.06794 , Bibcode:2018ApJ...856...37B, doi: 10.3847/1538-4357/aaafca , S2CID   119332645
  7. ↑ "Kepler-15". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-08-09.
  8. 1 2 Borucki, William J.; et al. (2011). "Characteristics of Planetary Candidates Observed by Kepler. II. Analysis of the First Four Months of Data". The Astrophysical Journal. 736 (1): 19. arXiv: 1102.0541 . Bibcode:2011ApJ...736...19B. doi:10.1088/0004-637X/736/1/19.
  9. ↑ "TEPCat: Kepler-15". Astro.keele.ac.uk. 2013-02-21. Retrieved 2013-02-28.
  10. ↑ Planet Kepler-15 b on explanet.eu
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