Kepler-107

Last updated
Kepler-107
Observation data
Epoch J2000       Equinox J2000
Constellation Cygnus [1]
Right ascension 19h 48m 06.77346s [2]
Declination +48° 12′ 30.964″ [2]
Apparent magnitude  (V)12.70 [3]
Characteristics
Evolutionary stage subgiant [2]
Spectral type F6/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: −9.393 mas/yr [2]
Dec.: 0.158 mas/yr [2]
Parallax (π)1.9259±0.0092  mas [2]
Distance 1,694 ± 8  ly
(519 ± 2  pc)
Details
Mass 1.238±0.029 [4]   M☉
Radius 1.447±0.014 [4]   R☉
Luminosity 2.38 [5]   L☉
Surface gravity (log g)Spectroscopic: 4.28±0.10 cgs
Asteroseismic: 4.210±0.013 [4]   cgs
Temperature 5854±61 [4]   K
Metallicity [Fe/H]0.321±0.065 [4]   dex
Rotation 22.35 days [6]
Rotational velocity (v sin i)3.6±0.5 [4]  km/s
Age 4.29+0.70
−0.56 [4]   Gyr
Other designations
Kepler-107, KOI-117, KIC 10875245, 2MASS J19480677+4812309 [7]
Database references
SIMBAD data

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

Planetary system

Kepler-107 has four known planets discovered in 2014. [9] [10] [11] [12] A giant impact is the likely origin of two planets in the system. [4] Kepler-107 c is more than twice as dense (about 12.6 g/cm3) as the innermost exoplanet Kepler-107 b (about 5.3 g/cm3). [4]

The Kepler-107 planetary system [13]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
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

  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 Gray, 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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Bonomo, 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 . Retrieved 2025-08-25.
  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. Retrieved 5 May 2017.
  10. ↑ "Exoplanets Data Explorer | Exoplanets - Detail View". exoplanets.org. Retrieved 5 May 2017.
  11. ↑ "Exoplanets Data Explorer | Exoplanets - Detail View". exoplanets.org. Retrieved 5 May 2017.
  12. ↑ "Exoplanets Data Explorer | Exoplanets - Detail View". exoplanets.org. Retrieved 5 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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