Kepler-429 (KIC 10001893) is a variable subdwarf B star in the constellation Lyra, about 5,900 light years away.
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 | |
Database references | |
SIMBAD | data |
Exoplanet Archive | data |
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]
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
References
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