Article · Wikipedia archive · Last revised Jul 15, 2026

Kepler-429

Kepler-429 is a variable subdwarf B star in the constellation Lyra, about 5,900 light years away.

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Jul 15, 2026
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Kepler-429
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Lyra1
Right ascension 19h 09m 33.4137s2
Declination +46° 59′ 04.108″2
Apparent magnitude (V) 14.69 (var.)3
Characteristics
Evolutionary stage Subdwarf B star4
Spectral type sdB4
Apparent magnitude (J) 16.36±0.105
Variable type V361 Hya3
Astrometry
Proper motion (μ) RA: 1.1332 mas/yr
Dec.: −5.9072 mas/yr
Parallax (π)0.5573±0.0372 mas2
Distance5,900 ± 400 ly
(1,800 ± 100 pc)
Details
Mass0.476 M☉
Radius0.246 R☉
Luminosity3.547 L☉
Surface gravity (log g)5.357 cgs
Temperature27,5006 K
Metallicity [Fe/H]0.06 dex
Other designations
Kepler-429, KIC 10001893, 2MASS J19093340+4659041, Gaia DR2 21304731766266191365
Database references
SIMBADdata
Exoplanet Archivedata

Kepler-429 (KIC 10001893) is a variable subdwarf B star in the constellation Lyra, about 5,900 light years away.

The brightness of Kepler-429 changes unpredictably by up to 0.13 magnitudes.3 It has been classified as a V361 Hydrae variable, but also as a V1093 Herculis variable, which typically has slower variations and a cooler temperature. Over 100 pulsation modes were identified with periods from 256 seconds to over three hours.8

Planetary system

Kepler-429 has been reported to have three possible exoplanets,9 though their existence is questioned.10 They were detected by orbital brightness modulation.11

The KIC 10001893 planetary system12
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination
(°) 		Radius
b (unconfirmed) — 0.005541 0.21970 013 — —
c (unconfirmed) — 0.007197 0.32528 014 — —
d (unconfirmed) — 0.01324 0.81161 015 — —
See also

See also

References

References

  1. Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 2 January 2021.
  2. 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. Jayasinghe, T; Kochanek, C S; Stanek, K Z; Shappee, B J; Holoien, T W-S; Thompson, Toda A; Prieto, J L; Dong, Subo; Pawlak, M; Shields, J V; Pojmanski, G; Otero, S; Britt, C A; Will, D (1 July 2018). "The ASAS-SN catalogue of variable stars I: The Serendipitous Survey". Monthly Notices of the Royal Astronomical Society. 477 (3): 3145–3163. arXiv:1803.01001. Bibcode:2018MNRAS.477.3145J. doi:10.1093/mnras/sty838. ISSN 0035-8711.
  4. Baran, A. S.; Kawaler, S. D.; Reed, M. D.; Quint, A. C.; O'Toole, S. J.; Østensen, R. H.; Telting, J. H.; Silvotti, R.; Charpinet, S.; Christensen-Dalsgaard, J.; Still, M.; Hall, J. R.; Uddin, K. (2011). "First Kepler results on compact pulsators - VII. Pulsating subdwarf B stars detected in the second half of the survey phase". Monthly Notices of the Royal Astronomical Society. 414 (4): 2871. arXiv:1103.1666. Bibcode:2011MNRAS.414.2871B. doi:10.1111/j.1365-2966.2011.18486.x.
  5. "Kepler-429 -- Hot subdwarf". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2 January 2021.
  6. Mathur, Savita; Huber, Daniel; Batalha, Natalie M.; Ciardi, David R.; Bastien, Fabienne A.; Bieryla, Allyson; Buchhave, Lars A.; Cochran, William D.; Endl, Michael; Esquerdo, Gilbert A.; Furlan, Elise; Howard, Andrew; Howell, Steve B.; Isaacson, Howard; Latham, David W.; MacQueen, Phillip J.; Silva, David R. (2017). "Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run". The Astrophysical Journal Supplement Series. 229 (2): 30. arXiv:1609.04128. Bibcode:2017ApJS..229...30M. doi:10.3847/1538-4365/229/2/30. S2CID 39426786.
  7. Loyd, R. O. Parke; Shkolnik, Evgenya L.; Schneider, Adam C.; Richey-Yowell, Tyler; Barman, Travis S.; Peacock, Sarah; Pagano, Isabella (2020). "Current Population Statistics do Not Favor Photoevaporation over Core-powered Mass Loss as the Dominant Cause of the Exoplanet Radius Gap". The Astrophysical Journal. 890 (1): 23. arXiv:1912.12305. Bibcode:2020ApJ...890...23L. doi:10.3847/1538-4357/ab6605. S2CID 209516410.
  8. Uzundag, M.; Baran, A. S.; Østensen, R. H.; Reed, M. D.; Telting, J. H.; Quick, B. K. (2017). "KIC 10001893: A pulsating SDB star with multiple trapped modes". Monthly Notices of the Royal Astronomical Society. 472 (1): 700. arXiv:1812.05675. Bibcode:2017MNRAS.472..700U. doi:10.1093/mnras/stx2011.
  9. Silvotti, R.; Charpinet, S.; Green, E.; Fontaine, G.; Telting, J. H.; Østensen, R. H.; Van Grootel, V.; Baran, A. S.; Schuh, S.; Fox Machado, L. (2014). "Keplerdetection of a new extreme planetary system orbiting the subdwarf-B pulsator KIC 10001893". Astronomy & Astrophysics. 570: A130. arXiv:1409.6975. Bibcode:2014A&A...570A.130S. doi:10.1051/0004-6361/201424509. S2CID 46974308.
  10. Blokesz, A.; et al. (July 2019). "Analysis of putative exoplanetary signatures found in light curves of two sdBV stars observed by Kepler". Astronomy & Astrophysics. 627: A86. arXiv:1906.03321. Bibcode:2019A&A...627A..86B. doi:10.1051/0004-6361/201835003. S2CID 182952925.
  11. "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". exoplanets.nasa.gov. Retrieved 2023-12-21.
  12. "KIC 10001893". NASA Exoplanet Archive. Retrieved 2 January 2021.
  13. "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". exoplanets.nasa.gov. Retrieved 2023-12-21.
  14. "Eyes on Exoplanets-KIC 10001893 c".
  15. "Eyes on Exoplanets-KIC 10001893 d".