| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra1 |
| Right ascension | 19h 11m 05.6526s2 |
| Declination | +42° 52′ 09.473″2 |
| Apparent magnitude (V) | 13.101 |
| Characteristics | |
| Evolutionary stage | subgiant2 |
| Spectral type | G53 |
| J−H color index | 0.359 |
| J−K color index | 0.408 |
| Variable type | ROT, Planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: 3.477(16) mas/yr2 Dec.: −5.233(19) mas/yr2 |
| Parallax (π) | 1.0644±0.0154 mas2 |
| Distance | 3,060 ± 40 ly (940 ± 10 pc) |
| Details | |
| Mass | 1.014 M☉ |
| Radius | 1.118+0.015 −0.0455 R☉ |
| Luminosity | 1.01±0.055 L☉ |
| Surface gravity (log g) | 4.334 cgs |
| Temperature | 5471+115 −375 K |
| Metallicity [Fe/H] | 0.266 dex |
| Rotation | 77 days4 |
| Rotational velocity (v sin i) | 1.34 km/s |
| Age | 84 Gyr |
| Other designations | |
| KOI-456, KIC 7269974, 2MASS J19110565+4252094, Gaia DR3 21025870878460677127 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| KIC | data |
Kepler-160 is a G-type subgiant star approximately the width of our Galactic arm away in the constellation Lyra, first studied in detail by the Kepler Mission, a NASA-led operation tasked with discovering terrestrial planets. The star, which is very similar to the Sun in mass and radius,85 has three confirmed planets and one unconfirmed planet orbiting it.
Characteristics
The star Kepler-160 is rather old, having no detectable circumstellar disk.9 The star's metallicity is unknown, with conflicting values of either 40% or 160% of solar metallicity reported.1011
Despite having at least one potentially Earth-like planet (KOI-456.04), the Breakthrough Listen search for extraterrestrial intelligence found no potential technosignatures.12
Planetary system
The two planetary candidates in the Kepler-160 system were discovered in 2010, published in early 201113 and confirmed in 2014.14 The planets Kepler-160b and Kepler-160c are not in orbital resonance despite their orbital periods ratio being close to 1:3.15
An additional rocky transiting planet candidate KOI-456.04, located in the habitable zone, was detected in 2020,5 and more non-transiting planets are suspected due to residuals in the solution for the transit timing variations. From what researchers can tell, KOI-456.04 looks to be less than twice the size of Earth and is apparently orbiting Kepler-160 at about the same distance from Earth to the sun (one complete orbit is 378 days). Perhaps most important, it receives about 93% as much light as Earth gets from the sun.16 Nontransiting planet candidate Kepler-160d has a mass between about 1 and 100 Earth masses and an orbital period between about 7 and 50 d.5
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | — | 0.05511+0.0019 −0.0037 |
4.309397+0.000013 −0.000012 |
0 | — | 1.715+0.061 −0.047 R🜨 |
| c | — | 0.1192+0.004 −0.008 |
13.699429±0.000018 | 0 | — | 3.76+0.23 −0.09 R🜨 |
| d | 1—100 M🜨 | — | 7—50 | — | — | — |
| e (unconfirmed) | — | 1.089+0.037 −0.073 |
378.417+0.028 −0.025 |
0 | — | 1.91+0.17 −0.14 R🜨 |
See also
See also
References
References
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- 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.
- Su, Tianhao; Zhang, Li-yun; Long, Liu; Han, Xianming L.; Misra, Prabhakar; Meng, Gang; Pi, Qingfeng; Yang, Zilu; Yang, Jiawei (2022). "Magnetic Activity and Physical Parameters of Exoplanet Host Stars Based on LAMOST DR7, TESS, Kepler, and K2 Surveys". The Astrophysical Journal Supplement Series. 261 (2): 26. Bibcode:2022ApJS..261...26S. doi:10.3847/1538-4365/ac7151.
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