Kepler-429
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| 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[4] |
| Spectral type | sdB[4] |
| Apparent magnitude (J) | 16.36±0.10[5] |
| 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[6] M☉ |
| Radius | 0.24[6] R☉ |
| Luminosity | 3.54[7] L☉ |
| Surface gravity (log g) | 5.35[7] cgs |
| Temperature | 27,500[6] K |
| Metallicity [Fe/H] | 0.0[6] dex |
| Other designations | |
| Gaia DR2 2130473176626619136, Kepler-429, KIC 10001893, 2MASS J19093340+4659041[5] | |
| 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.[8]
Planetary system
[edit | edit source]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]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b (unconfirmed) | — | 0.005541 | 0.21970 | 0[13] | — | — |
| c (unconfirmed) | — | 0.007197 | 0.32528 | 0[14] | — | — |
| d (unconfirmed) | — | 0.01324 | 0.81161 | 0[15] | — | — |
See also
[edit | edit source]References
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- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR3 record for this source at VizieR.
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).