Kepler-29
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 53m 23.6018s[2] |
| Declination | +47° 29′ 28.437″[2] |
| Apparent magnitude (V) | 15.456±0.025[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | G5V[4] |
| Astrometry | |
| Proper motion (μ) | RA: 6.487(29) mas/yr[2] Dec.: 16.183(24) mas/yr[2] |
| Parallax (π) | 1.1276±0.0229 mas[2] |
| Distance | 2,890 ± 60 ly (890 ± 20 pc) |
| Details | |
| Mass | 0.761+0.024 −0.028[5] M☉ |
| Radius | 0.732+0.033 −0.031[5] R☉ |
| Luminosity | 0.43[6] L☉ |
| Surface gravity (log g) | 4.6±0.1[5] cgs |
| Temperature | 5378±60[5] K |
| Metallicity [Fe/H] | −0.44±0.04[5] dex |
| Rotation | 10.34 days[7] |
| Rotational velocity (v sin i) | 1.1[8] km/s |
| Age | 7.1[8] Gyr |
| Other designations | |
| KOI-738, KIC 205071984, 2MASS J19532359+4729284, Gaia DR2 2086435189017387264[9] | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-29 is a Sun-like star in the northern constellation of Cygnus. It is located at the celestial coordinates: Right Ascension 19h 53m 23.6018s, Declination +47° 29′ 28.437″.[2] With an apparent visual magnitude of 15.456,[3] this star is too faint to be seen with the naked eye. It is a solar analog, having a close mass, radius, and temperature as the Sun. Currently the age of the star has not been determined due to its 2780 light-year (850 parsecs) distance. As of 2016 no Jovian exoplanets of 0.9–1.4 MJ have been found at a distance of 5 AU. [10]
Planetary system
[edit]In 2011 an analysis of the first four months of data from the Kepler space telescope detected 1235 planetary candidates two of which orbited this star.[11] Later study of the transit-timing variations of the system lead to the confirmation of both planets.[12] The planetary orbits are lying in Orbital resonance to each other, with orbital period ratio being exactly 7:9.[13]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 5.0+1.5 −1.3 M🜨 |
0.09 | 10.33966+0.00015 −0.00017 |
— | — | 2.55±0.12 R🜨 |
| c | 4.5±1.1 M🜨 | 0.11 | 13.28633+0.00031 −0.00027 |
— | — | 2.34+0.12 −0.11 R🜨 |
References
[edit]- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 3 4 5 6 7 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.
- 1 2 Henden, A. A.; et al. (2016). "VizieR Online Data Catalog: AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)". VizieR On-line Data Catalog: II/336. Originally Published in: 2015AAS...22533616H. 2336. Bibcode:2016yCat.2336....0H.Vizier catalog entry
- ↑ Schneider, Jean, "Star: Kepler-29", Extrasolar Planets Encyclopaedia, archived from the original on 2012-04-26, retrieved 2011-12-06
- 1 2 3 4 5 6 Vissapragada, Shreyas; et al. (2020). "Diffuser-assisted Infrared Transit Photometry for Four Dynamically Interacting Kepler Systems". The Astronomical Journal. 159 (3). 108. arXiv:1907.04445. Bibcode:2020AJ....159..108V. doi:10.3847/1538-3881/ab65c8. S2CID 195874295.
- ↑ 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.
- ↑ Su, Tianhao; Zhang, Liyun; Han, Xianming L.; Misra, Prabhakar; Zhu, Zhongzhong; Pi, Qingfeng (2025). "Stellar magnetic activity in Earth 2.0 candidates based on LAMOST DR10". Astronomy and Astrophysics. 694: A157. Bibcode:2025A&A...694A.157S. doi:10.1051/0004-6361/202452042.
- 1 2 Petigura, Erik A.; Rogers, James G.; Isaacson, Howard; Owen, James E.; Kraus, Adam L.; Winn, Joshua N.; MacDougall, Mason G.; Howard, Andrew W.; Fulton, Benjamin; Kosiarek, Molly R.; Weiss, Lauren M.; Behmard, Aida; Blunt, Sarah (2022). "The California-Kepler Survey. X. The Radius Gap as a Function of Stellar Mass, Metallicity, and Age". The Astronomical Journal. 163 (4): 179. arXiv:2201.10020. Bibcode:2022AJ....163..179P. doi:10.3847/1538-3881/ac51e3.
- ↑ "Kepler-29". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-08-06.
- ↑ Open Exoplanet Catalogue, Kepler-29
- ↑ Borucki, William J.; et al. (2011). "Characteristics of Planetary Candidates Observed by Kepler. II. Analysis of the First Four Months of Data". The Astrophysical Journal. 736 (1). 19. arXiv:1102.0541. Bibcode:2011ApJ...736...19B. doi:10.1088/0004-637X/736/1/19.
- 1 2 Fabrycky, Daniel C.; et al. (2012). "Transit Timing Observations from Kepler. IV. Confirmation of Four Multiple-planet Systems by Simple Physical Models". The Astrophysical Journal. 750 (2). 114. arXiv:1201.5415. Bibcode:2012ApJ...750..114F. doi:10.1088/0004-637X/750/2/114.
- ↑ Panichi, Federico; Goździewski, Krzyszof; Turchetti, Giorgio (2017), "The Reversibility Error Method (REM): a new, dynamical fast indicator for planetary dynamics", Monthly Notices of the Royal Astronomical Society, 468: 469–491, arXiv:1703.10596, doi:10.1093/mnras/stx374, S2CID 119391438