Kepler-429

Subdwarf B star

Kepler-429  Observation data
Epoch J2000.0 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 mas[2]
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

[edit]

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

[edit]

* Kepler-70

## References

[edit]

1. ^ Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 2 January 2021.
2. ^ a b c d e 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. ^ a b c 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. ^ a b c "Kepler-429 -- Hot subdwarf". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2 January 2021.
5. ^ a b c d 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.
6. ^ a b 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.
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. arXiv:1812.05675. Bibcode:2017MNRAS.472..700U. doi:10.1093/mnras/stx2011.
8. ^ 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.
9. ^ 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.
10. ^ "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". exoplanets.nasa.gov. Retrieved 2023-12-21.
11. ^ "KIC 10001893". NASA Exoplanet Archive. Retrieved 2 January 2021.
12. ^ "Eyes On Exoplanets – Exoplanet Exploration: Planets Beyond our Solar System". exoplanets.nasa.gov. Retrieved 2023-12-21.
13. ^ "Eyes on Exoplanets-KIC 10001893 c".
14. ^ "Eyes on Exoplanets-KIC 10001893 d".

* v
* t
* e

Constellation of Lyra

* List of stars in Lyra
* Lyra in Chinese astronomy

Stars|

| Bayer|

* α (Vega)
* β (Sheliak)
* γ (Sulafat)
* δ1
* δ2
* ε1
* ε2
* ζ1
* ζ2
* η (Aladfar)
* θ
* ι
* κ
* λ
* μ (Alathfar)
* ν1
* ν2

|

Flamsteed|

* 16
* 17
* 19

Variable|

* R (13)
* RR
* DM
* FL
* HP
* HR
* V473
* V672

HR|

* 6845
* 6847
* 6968
* 6997
* 7043 (Xihe)
* 7044
* 7064
* 7073
* 7081
* 7112
* 7132
* 7146
* 7162
* 7181
* 7202
* 7237
* 7238
* 7302

HD|

* 177830
* 179070
* 180314
* 181068

Kepler|

* 7
* 8
* 9
* 13
* 14
* 19
* 20
* 24
* 25
* 26
* 30
* 37
* 38
* 43
* 46
* 60
* 62
* 65
* 88
* 92
* 93
* 100
* 102
* 104
* 105
* 130
* 138
* 160
* 174
* 238
* 277
* 279
* 282
* 350
* 410
* 421
* 429
* 444
* 635
* 705
* 725
* 1513

Other|

* Gliese 758
* HAT-P-5 (Chasoň)
* KSw 71
* LHS 6343
* LSR J1835+3259
* WASP-3
* WASP-58
* WISE 1828+2650
* WISEP J190648.47+401106.8

Exoplanets|

| Kepler|

* 7b
* 8b
* 9b
* c
* d
* 14b
* 20b
* c
* d
* e
* f
* 24b
* c
* d
* e
* 25b
* c
* 26e
* 37b
* c
* d
* 59b
* 60d
* 62b
* c
* d
* e
* f
* 91b
* 93b
* 277b
* c
* 438b
* 440b
* 442b
* 453b

|

Other|

* HAT-P-5b (Kráľomoc)
* HD 173416 b (Wangshu)
* HD 178911 Bb
* TrES-1b

Star clusters|

* δ Lyrae cluster
* Messier 56
* NGC 6791

Nebulae|

* Ring Nebula

Galaxies|

| NGC|

* 6646
* 6672
* 6685
* 6745

|

Other|

* 3C 382
* 3C 395
* IC 1296

*[RA:]: Right Ascension
*[Dec.:]: Declination
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*[t]: Discuss this template
*[e]: Edit this template