| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19 53 23.6018 |
| Declination | +47° 29′ 28.437″ |
| Apparent magnitude (V) | 15.456±0.025 |
| Characteristics | |
| Spectral type | G5V |
| Astrometry | |
| Proper motion (μ) | RA: 6.487(29) mas/yr Dec.: 16.183(24) mas/yr |
| Parallax (π) | 1.1276 ± 0.0229 mas |
| Distance | 2,890 ± 60 ly (890 ± 20 pc) |
| Details | |
| Mass | 0.761+0.024 −0.028 M☉ |
| Radius | 0.732+0.033 −0.031 R☉ |
| Surface gravity (log g) | 4.6±0.1 cgs |
| Temperature | 5378±60 K |
| Metallicity | −0.44±0.04 dex |
| Other designations | |
| Gaia DR2 2086435189017387264, KOI-738, KIC 205071984, 2MASS J19532359+4729284 | |
| 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 19 53 23.6018, Declination +47° 29′ 28.437″. With an apparent visual magnitude of 15.456, 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.
Planetary system
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. Later study of the transit-timing variations of the system lead to the confirmation of both planets. The planetary orbits are lying in Orbital resonance to each other, with orbital period ratio being exactly 7:9.
| 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
- "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
- ^ 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.
- ^ 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
- ^ 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.
- "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.
- ^ 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