Kepler-19

Kepler-19
Observation data; Epoch J2000 Equinox ICRS
Constellation	Lyra
Right ascension	19h 21m 40.99950s
Declination	+37° 51′ 06.4373″
Apparent magnitude (V)	12.04
Astrometry
Radial velocity (Rv)	−11.36±0.53 km/s
Proper motion (μ)	RA: 25.349 mas/yr ; Dec.: −30.792 mas/yr
Parallax (π)	4.5296±0.0087 mas
Distance	720 ± 1 ly ; (220.8 ± 0.4 pc)
Details
Mass	0.936±0.04 M☉
Radius	0.859±0.018 R☉
Surface gravity (log g)	4.54 cgs
Temperature	5541±60 K
Metallicity [Fe/H]	−0.13±0.06 dex
Rotational velocity (v sin i)	1.8±0.5 km/s
Age	1.9±1.7 Gyr
Other designations
	KIC 2571238, KOI-84, TYC 3134-1549-1, GSC 03134-01549, 2MASS J19214099+3751064, Gaia DR2 2051106987063242880
Database references
SIMBAD	data
Exoplanet Archive	data
KIC	data

Kepler-19 (TYC 3134-1549-1, 2MASS J19214099+3751064, GSC 03134-01549, KOI-84) is a G7V star that is host to three known planets - Kepler-19b, Kepler-19c, and Kepler-19d. It is located about 720 light-years (220 parsecs) away in the constellation Lyra, five arcminutes northwest of the much more distant open cluster NGC 6791.

Planetary system

There are three known planets in the Kepler-19 planetary system. Planet b was discovered by the transit method, c by transit-timing variations and d by radial velocity measurements.

The Kepler-19 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination (°)	Radius
b	8.4+1.6 −1.5 `M`_🜨	0.0846±0.0012	9.2869900	0.12±0.02	89.94+0.06 −0.44	2.209±0.048 `R`_🜨
c	13.1±2.7 `M`_🜨	—	28.731+0.012 −0.005	0.21+0.05 −0.07	—	—
d	22.5+1.2 −5.6 `M`_🜨	—	62.95+0.04 −0.30	0.05+0.16 −0.01	—	—

References

↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
1 2 3 4 5 6 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.
↑ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
1 2 3 4 5 6 Bonomo, A. S.; Dumusque, X.; et al. (April 2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems". Astronomy & Astrophysics. arXiv:2304.05773. Bibcode:2023A&A...677A..33B. doi:10.1051/0004-6361/202346211. S2CID 258078829.
1 2 3 "KOI-84". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 January 2017.
↑ Buchhave, Lars A.; et al. (2012). "An abundance of small exoplanets around stars with a wide range of metallicities". Nature. 486 (7403): 375–377. Bibcode:2012Natur.486..375B. doi:10.1038/nature11121. PMID 22722196. S2CID 4427321.
↑ Ballard, Sarah; et al. (2011). "The Kepler-19 System: A Transiting 2.2R_🜨 Planet and a Second Planet Detected Via Transit Timing Variations". The Astrophysical Journal. 743 (2). 200. arXiv:1109.1561. Bibcode:2011ApJ...743..200B. doi:10.1088/0004-637X/743/2/200.
1 2 Malavolta, Luca; et al. (2017). "The Kepler-19 System: A Thick-envelope Super-Earth with Two Neptune-mass Companions Characterized Using Radial Velocities and Transit Timing Variations". The Astronomical Journal. 153 (5). 224. arXiv:1703.06885. Bibcode:2017AJ....153..224M. doi:10.3847/1538-3881/aa6897.

External links

NASA, Kepler mission, Table of Confirmed Planets

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[Roman1987-1] Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.

[GaiaDR3-2] 1 2 3 4 5 6 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.

[TYC2-3] Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.

[Bonomo2023-4] 1 2 3 4 5 6 Bonomo, A. S.; Dumusque, X.; et al. (April 2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems". Astronomy & Astrophysics. arXiv:2304.05773. Bibcode:2023A&A...677A..33B. doi:10.1051/0004-6361/202346211. S2CID 258078829.

[simbad-5] 1 2 3 "KOI-84". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 January 2017.

[Buchhave-6] Buchhave, Lars A.; et al. (2012). "An abundance of small exoplanets around stars with a wide range of metallicities". Nature. 486 (7403): 375–377. Bibcode:2012Natur.486..375B. doi:10.1038/nature11121. PMID 22722196. S2CID 4427321.

[Ballard2011-7] Ballard, Sarah; et al. (2011). "The Kepler-19 System: A Transiting 2.2R_🜨 Planet and a Second Planet Detected Via Transit Timing Variations". The Astrophysical Journal. 743 (2). 200. arXiv:1109.1561. Bibcode:2011ApJ...743..200B. doi:10.1088/0004-637X/743/2/200.

[Malavolta2017-8] 1 2 Malavolta, Luca; et al. (2017). "The Kepler-19 System: A Thick-envelope Super-Earth with Two Neptune-mass Companions Characterized Using Radial Velocities and Transit Timing Variations". The Astronomical Journal. 153 (5). 224. arXiv:1703.06885. Bibcode:2017AJ....153..224M. doi:10.3847/1538-3881/aa6897.