Kepler-429

Short description: Subdwarf B star

Kepler-429  Observation data
Equinox J2000.0]] (ICRS)

Constellation | Lyra[1]
Right ascension |  19h 09m 33.4137s[2]
Declination | +46° 59′ 04.108″[2]
Apparent magnitude (V) | 14.69 (var.)[3]
Characteristics
Evolutionary stage | Subdwarf B star
Spectral type | sdB[4]
Apparent magnitude (J) | 16.36±0.10[4]
Variable type | V361 Hya[3]
Astrometry
Proper motion (μ)|  RA: 1.133[2] mas/yr
Dec.: −5.907[2] mas/yr
Parallax (π)| 0.5573 ± 0.0372[2] mas
Distance| 5,900 ± 400 ly
(1,800 ± 100 pc)
Details
Mass| 0.47[5] M☉
Radius| 0.24[5] R☉
Luminosity| 3.54[6] L☉
Surface gravity (log g)| 5.35[6] cgs
Temperature| 27,500[5] K
Metallicity [Fe/H]| 0.0[5] dex
Other designations

Gaia DR2 2130473176626619136, Kepler-429, KIC 10001893, 2MASS J19093340+4659041[4]

Database references
SIMBAD| data
Exoplanet Archive| data

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.[7]

## Planetary system

Kepler-429 has been reported to have three possible exoplanets,[8] though their existence is questioned.[9] They were detected by orbital brightness modulation.[10]

The KIC 10001893 planetary system[11] Companion
(in order from star) | Mass | Semimajor axis
(AU) | Orbital period
(days) | Eccentricity | Inclination | Radius

|
|
|
|
|
|

b (unconfirmed) | —  | 0.005541  | 0.21970  | 0[12] | —  | —
c (unconfirmed) | —  | 0.007197  | 0.32528  | 0[13] | —  | —
d (unconfirmed) | —  | 0.01324  | 0.81161  | 0[14] | —  | —

## See also

* Kepler-70

## References

1. ↑ Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. http://djm.cc/constellation.html.
2. ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
3. ↑ 3.0 3.1 3.2 Jayasinghe, T; Kochanek, C S; Stanek, K Z; Shappee, B J; Holoien, T W-S; Thompson, Toda A; Prieto, J L; Dong, Subo et al. (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. doi:10.1093/mnras/sty838. ISSN 0035-8711. Bibcode: 2018MNRAS.477.3145J.
4. ↑ 4.0 4.1 4.2 "Kepler-429 -- Hot subdwarf". SIMBAD. Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Kepler-429.
5. ↑ 5.0 5.1 5.2 5.3 Mathur, Savita; Huber, Daniel; Batalha, Natalie M.; Ciardi, David R.; Bastien, Fabienne A.; Bieryla, Allyson; Buchhave, Lars A.; Cochran, William D. et al. (2017). "Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run". The Astrophysical Journal Supplement Series 229 (2): 30. doi:10.3847/1538-4365/229/2/30. Bibcode: 2017ApJS..229...30M.
6. ↑ 6.0 6.1 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. doi:10.3847/1538-4357/ab6605. Bibcode: 2020ApJ...890...23L.
7. ↑ 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. doi:10.1093/mnras/stx2011. Bibcode: 2017MNRAS.472..700U.
8. ↑ Silvotti, R.; Charpinet, S.; Green, E.; Fontaine, G.; Telting, J. H.; Østensen, R. H.; Van Grootel, V.; Baran, A. S. et al. (2014). "Keplerdetection of a new extreme planetary system orbiting the subdwarf-B pulsator KIC 10001893". Astronomy & Astrophysics 570: A130. doi:10.1051/0004-6361/201424509. Bibcode: 2014A&A...570A.130S.
9. ↑ Blokesz, A. (July 2019). "Analysis of putative exoplanetary signatures found in light curves of two sdBV stars observed by Kepler". Astronomy & Astrophysics 627: A86. doi:10.1051/0004-6361/201835003. Bibcode: 2019A&A...627A..86B.
10. ↑ "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". https://exoplanets.nasa.gov/eyes-on-exoplanets/#/system/KIC_10001893/.
11. ↑ "KIC 10001893". https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=KIC+10001893.
12. ↑ "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". https://exoplanets.nasa.gov/eyes-on-exoplanets/#/planet/KIC_10001893_b/.
13. ↑ "Eyes on Exoplanets-KIC 10001893 c". https://exoplanets.nasa.gov/eyes-on-exoplanets/#/planet/KIC_10001893_c/.
14. ↑ "Eyes on Exoplanets-KIC 10001893 d". https://exoplanets.nasa.gov/eyes-on-exoplanets/#/planet/KIC_10001893_d/.

* v
* t
* e

Stars of Lyra

Bayer|

* α (Vega)
* β (Sheliak)
* γ (Sulafat)
* δ1
* δ2
* ε1, 2
* ζ1
* ζ2
* η (Aladfar)
* θ
* ι
* κ
* λ
* μ (Alathfar)
* ν1
* ν2

Flamsteed|

* 16
* 17
* 19

Variable|

* R (13)
* S
* T
* V
* W
* RR
* RV
* RZ
* TT
* TZ
* UZ
* XY
* AY
* CC
* CN
* CY
* DM
* EP
* EZ
* FL
* HK
* HP
* HR
* KX
* MV
* V344
* V361
* V404
* V473
* V477
* V478
* V533
* V542
* V543
* V545
* V550
* V558

HR|

* 6845
* 6847
* 6853
* 6901
* 6968
* 6984
* 6997
* 7016
* 7017
* 7019
* 7030
* 7033
* 7041
* 7043
* 7044
* 7064
* 7073
* 7081
* 7112
* 7115
* 7118
* 7132
* 7140
* 7146
* 7162
* 7181
* 7202
* 7204
* 7212
* 7237
* 7238
* 7244
* 7253
* 7272
* 7280
* 7284
* 7302
* 7338
* 7345
* 7346
* 7359
* 7376
* 7382

HD|

* 177830
* 180314
* 181068

Gliese|

* Gliese 758
* GJ 4063

Kepler|

* 7
* 8
* 9
* 13
* 14
* 19
* 20
* 21
* 24
* 25
* 26
* 30
* 37
* 38
* 46
* 53
* 55
* 59
* 60
* 62
* 65
* 75
* 83
* 88
* 91
* 92
* 93
* 94
* 95
* 98
* 100
* 102
* 103
* 104
* 105
* 109
* 128
* 130
* 131
* 138
* 177
* 238
* 277
* 279
* 282
* 350
* 410
* 421
* 444

Other|

* GSC 02634-01087
* GSC 02652-01324
* KSw 71
* LHS 6343
* 2MASS 1835+3259
* WASP-3
* WASP-58
* WISE 1828+2650

* List

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