Kepler-29

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[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
	Gaia DR2 2086435189017387264, KOI-738, KIC 205071984, 2MASS J19532359+4729284[6]
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^h 53^m 23.6020^s, 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 M_J 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 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_⊕

gollark: The FPGA could be backdoored.

gollark: Just use some random underpowered ARM system without the ME and such.

gollark: I suppose my best defense would be switching to IP over Avian Carriers and a lot of paper to run computations on.

gollark: There's not really a well-supported thing which *is* an actual vector image format though.

gollark: More attack surface → more bugs → more bad.

References

"Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
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.
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, Paris Observatory, 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.
"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.

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[IAU_const-1] "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15

[Gaia_DR2-2] 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.

[APASS_DR9-3] 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

[epe-4] Schneider, Jean, "Star: Kepler-29", Extrasolar Planets Encyclopaedia, Paris Observatory, archived from the original on 2012-04-26, retrieved 2011-12-06

[Vissapragada2020-5] 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.

[Simbad-6] "Kepler-29". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-08-06.

[7] Open Exoplanet Catalogue, Kepler-29

[Borucki2011-8] 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.

[Fabrycky2012-9] 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.