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Kepler-107

From Wikipedia, the free encyclopedia
Star in the constellation Cygnus
Kepler-107
Observation data
Epoch J2000      Equinox J2000
ConstellationCygnus[1]
Right ascension19h 48m 06.77346s[2]
Declination+48° 12′ 30.964″[2]
Apparent magnitude (V)12.70[3]
Characteristics
Evolutionary stagesubgiant[2]
Spectral typeF6/G1 IV/V[3]
Apparent magnitude (B)13.34[4]
Apparent magnitude (V)12.70[4]
Apparent magnitude (J)11.39[4]
Apparent magnitude (K)11.06[4]
Astrometry
Radial velocity (Rv)5.64423±0.00045[4] km/s
Proper motion (μ)RA: −9.393mas/yr[2]
Dec.: 0.158mas/yr[2]
Parallax (π)1.9259±0.0092 mas[2]
Distance1,694 ± 8 ly
(519 ± 2 pc)
Details
Mass1.238±0.029[4] M☉
Radius1.447±0.014[4] R☉
Luminosity2.38[5] L☉
Surface gravity (log g)Spectroscopic:4.28±0.10 cgs
Asteroseismic:4.210±0.013[4] cgs
Temperature5854±61[4] K
Metallicity[Fe/H]0.321±0.065[4] dex
Rotation22.35 days[6]
Rotational velocity (v sin i)3.6±0.5[4] km/s
Age4.29+0.70
−0.56[4] Gyr
Other designations
Kepler-107,KOI-117,KIC 10875245,2MASS J19480677+4812309[7]
Database references
SIMBADdata
Exoplanet Archivedata

Kepler-107 is astar about 1,694light-years (519parsecs) away in theconstellationCygnus. No stellar companions were found as of 2016.[8]

Planetary system

[edit]

Kepler-107 has four known planets discovered in 2014.[9][10][11][12] A giant impact is the likely origin of twoplanets in the system.[4] Kepler-107 c is more than twice asdense (about12.6 g/cm3) as the innermost exoplanet Kepler-107 b (about5.3 g/cm3).[4]

The Kepler-107 planetary system[13]
Companion
(in order from star)		MassSemimajor axis
(AU)		Orbital period
(days)		EccentricityInclinationRadius
b3.8+1.8
−1.7 M🜨		0.04544±0.000363.1800218±0.0000029<0.1089.05±0.67°1.536±0.025 R🜨
c10.0±2.0 M🜨0.06064±0.000484.901452±0.0<0.08089.49+0.34
−0.44°		1.597±0.026 R🜨
d<7.7 M🜨0.08377±0.000657.95839±0.00012<0.1187.55+0.64
−0.48°		0.860±0.060 R🜨
e14.1±3.3 M🜨0.12638±0.0009914.749143±0.000019<0.1089.67±0.22°2.903±0.035 R🜨

References

[edit]
  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 atVizieR.
  2. ^abcdeVallenari, 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 atVizieR.
  3. ^abGray, R. O.; Corbally, C. J.; De Cat, P.; Fu, J. N.; Ren, A. B.; Shi, J. R.; Luo, A. L.; Zhang, H. T.; Wu, Y.; Cao, Z.; Li, G.; Zhang, Y.; Hou, Y.; Wang, Y. (2016)."LAMOST Observations in the Kepler Field: Spectral Classification with the MKCLASS Code".The Astronomical Journal.151 (1): 13.Bibcode:2016AJ....151...13G.doi:10.3847/0004-6256/151/1/13.
  4. ^abcdefghijklmnBonomo, Aldo S.; Zeng, Li; et al. (May 2019). "A giant impact as the likely origin of different twins in the Kepler-107 exoplanet system".Nature Astronomy.3 (5):416–423.arXiv:1902.01316.Bibcode:2019NatAs...3..416B.doi:10.1038/s41550-018-0684-9.S2CID 89604609.
  5. ^Mishra, Lokesh; Alibert, Yann; Udry, Stéphane; Mordasini, Christoph (2023). "Framework for the architecture of exoplanetary systems. I. Four classes of planetary system architecture".Astronomy and Astrophysics.670: A68.arXiv:2301.02374.Bibcode:2023A&A...670A..68M.doi:10.1051/0004-6361/202243751.
  6. ^David, Trevor J.; Contardo, Gabriella; Sandoval, Angeli; Angus, Ruth; Lu, Yuxi Lucy; Bedell, Megan; Curtis, Jason L.; Foreman-Mackey, Daniel; Fulton, Benjamin J.; Grunblatt, Samuel K.; Petigura, Erik A.; Petigura, Erik A. (2021)."Evolution of the Exoplanet Size Distribution: Forming Large Super-Earths over Billions of Years".The Astronomical Journal.161 (6): 265.arXiv:2011.09894.Bibcode:2021AJ....161..265D.doi:10.3847/1538-3881/abf439.
  7. ^"Kepler-107".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2025-08-25.
  8. ^Kraus, Adam L.; Ireland, Michael J.; Huber, Daniel; Mann, Andrew W.; Dupuy, Trent J. (2016), "The Impact of Stellar Multiplicity on Planetary Systems. I. The Ruinous Influence of Close Binary Companions",The Astronomical Journal,152 (1): 8,arXiv:1604.05744,Bibcode:2016AJ....152....8K,doi:10.3847/0004-6256/152/1/8,S2CID 119110229
  9. ^"Exoplanets Data Explorer | Exoplanets - Detail View".exoplanets.org. Retrieved5 May 2017.
  10. ^"Exoplanets Data Explorer | Exoplanets - Detail View".exoplanets.org. Retrieved5 May 2017.
  11. ^"Exoplanets Data Explorer | Exoplanets - Detail View".exoplanets.org. Retrieved5 May 2017.
  12. ^"Exoplanets Data Explorer | Exoplanets - Detail View".exoplanets.org. Retrieved5 May 2017.
  13. ^Bonomo, A. S.; Dumusque, X.; et al. (April 2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems".Astronomy & Astrophysics.arXiv:2304.05773.Bibcode:2023A&A...677A..33B.doi:10.1051/0004-6361/202346211.S2CID 258078829.
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