Kepler-29
Observation data
Epoch J2000      Equinox J2000
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 mas[2]
Distance2,780 ± 90 ly
(850 ± 30 pc)
Details
Mass0.761+0.024
−0.028[5] M☉
Radius0.732+0.033
−0.031[5] R☉
Surface gravity (log g)4.6±0.1[5] cgs
Temperature5378±60[5] K
Metallicity [Fe/H]−0.44±0.04[5] dex
Other designations
Gaia DR2 2086435189017387264, KOI-738, KIC 205071984, 2MASS J19532359+4729284[6]
Database references
SIMBADdata
KICdata

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]

The Kepler-29 planetary system[9][5]
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

  1. ^ "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
  2. ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. ^ a b 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
  4. ^ Schneider, Jean, "Star: Kepler-29", Extrasolar Planets Encyclopaedia, archived from the original on 2012-04-26, retrieved 2011-12-06
  5. ^ a b c d e f 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.
  6. ^ "Kepler-29". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-08-06.
  7. ^ Open Exoplanet Catalogue, Kepler-29
  8. ^ 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.
  9. ^ a b 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.
  10. ^ 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


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