Astronomy:Kepler-29
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 53m 23.6020s[2] |
| Declination | +47° 29′ 28.436″[2] |
| Apparent magnitude (V) | 15.456±0.025[3] |
| Characteristics | |
| Spectral type | G5V[4] |
| Astrometry | |
| Proper motion (μ) | RA: 6.326±0.069[2] mas/yr Dec.: 16.226±0.049[2] mas/yr |
| Parallax (π) | 1.1739 ± 0.0377[2] mas |
| Distance | 2,780 ± 90 ly (850 ± 30 pc) |
| Details | |
| Mass | 0.761+0.024 −0.028[5] M☉ |
| Radius | 0.732+0.033 −0.031[5] R☉ |
| Surface gravity (log g) | 4.6±0.1[5] cgs |
| Temperature | 5378±60[5] K |
| Metallicity [Fe/H] | −0.44±0.04[5] dex |
| Other designations | |
| 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 23.6020s, Declination +47° 29′ 28.436″.[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. [7]
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.[8] Later study of the transit-timing variations of the system lead to the confirmation of both planets.[9] The planetary orbits are lying in Orbital resonance to each other, with orbital period ratio being exactly 7:9.[10]
| 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, http://www.iau.org/public/constellations/#cyg, retrieved 2011-12-15
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 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, http://exoplanet.eu/star.php?st=Kepler-29, retrieved 2011-12-06
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Vissapragada, Shreyas et al. (2020). "Diffuser-assisted Infrared Transit Photometry for Four Dynamically Interacting Kepler Systems". The Astronomical Journal 159 (3): 108. doi:10.3847/1538-3881/ab65c8. Bibcode: 2020AJ....159..108V.
- ↑ "Kepler-29". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-29.
- ↑ 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. doi:10.1088/0004-637X/736/1/19. Bibcode: 2011ApJ...736...19B.
- ↑ 9.0 9.1 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. doi:10.1088/0004-637X/750/2/114. Bibcode: 2012ApJ...750..114F.
- ↑ 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, doi:10.1093/mnras/stx374
Coordinates: 
19h 53m 23.598s, +47° 29′ 28.41″
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