Astronomy:Kepler-29

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Short description: Sun-like star in the constellation Cygnus
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
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, http://www.iau.org/public/constellations/#cyg, retrieved 2011-12-15 
  2. 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. Bibcode2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. 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. Bibcode2016yCat.2336....0H. Vizier catalog entry
  4. Schneider, Jean, Star: Kepler-29, http://exoplanet.eu/star.php?st=Kepler-29, retrieved 2011-12-06 
  5. 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. Bibcode2020AJ....159..108V. 
  6. "Kepler-29". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-29. 
  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. doi:10.1088/0004-637X/736/1/19. Bibcode2011ApJ...736...19B. 
  9. 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. Bibcode2012ApJ...750..114F. 
  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, doi:10.1093/mnras/stx374 

Coordinates: Sky map 19h 53m 23.598s, +47° 29′ 28.41″