CoRoT-4

CoRoT-4
Observation data; Epoch J2000 Equinox J2000
Constellation	Monoceros
Right ascension	06h 48m 46.7134s
Declination	−00° 40′ 21.9695″
Apparent magnitude (V)	13.45
Characteristics
Spectral type	F8V
Apparent magnitude (R)	13.42
Apparent magnitude (J)	12.619 ±0.026
Apparent magnitude (H)	12.359 ±0.029
Apparent magnitude (K)	12.29 ±0.03
R−I color index	13.531 [0.019]
Astrometry
Proper motion (μ)	RA: −3.659±0.049 mas/yr ; Dec.: −3.898±0.044 mas/yr
Parallax (π)	1.3484 ± 0.0280 mas
Distance	2,420 ± 50 ly ; (740 ± 20 pc)
Details
Mass	1.16+0.03; −0.02 M☉
Radius	1.17+0.01; −0.03 R☉
Temperature	6190 ± 60 K
Metallicity	[Fe/H] = 0 ± 0.15
Rotation	8.87 ± 1.12 d
Rotational velocity (v sin i)	6.4 ± 1.0 km/s
Age	1+1.0; −0.3 Gyr years
Other designations
	GSC 04800-02187, GSC2 S1002103169, UCAC2 31467163, CoRoT-Exo-4, 2MASS J06484671-0040219, USNO-B1.0 0893-00105986
Database references
SIMBAD	data

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CoRoT-4 (formerly known as CoRoT-Exo-4^[6]) is a yellow-white dwarf main-sequence star in the constellation Monoceros.^[3]

Planetary system

The star is orbited by one known extrasolar planet, designated CoRoT-4b. It was catalogued as part of the CoRoT mission to find transiting planets, when a planet was spotted using the transit method.^[5]

The CoRoT-4 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.72 ± 0.08 $M$ _J	0.090 ± 0.001	9.20205 ± 0.00037	0	—	—

References

^ ^a ^b ^c ^d ^e 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.
^ ^a ^b ^c Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia. Archived from the original on August 19, 2009. Retrieved 2009-03-19.
^ ^a ^b ^c ^d ^e ^f "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.
^ ^a ^b ^c ^d ^e Montou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters. 488 (2): L47–L50. arXiv:0807.3739. Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273. S2CID 118658022.
^ ^a ^b Aigrain, S.; et al. (2008). "Transiting exoplanets from the CoRoT space mission IV. CoRoT-Exo-4b: a transiting planet in a 9.2 day synchronous orbit". Astronomy & Astrophysics Letters. 488 (2): L43–L46. arXiv:0807.3767. Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246. S2CID 115916135.
^ Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Archived from the original on 2010-01-18. Retrieved 2009-03-19.

External links

"CoRot-4". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-04-28.

[Gaia_DR2-1] 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.

[schneider-2] Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia. Archived from the original on August 19, 2009. Retrieved 2009-03-19.

[SIMBAD-3] ^ ^a ^b ^c ^d ^e ^f "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.

[montou08-4] Montou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters. 488 (2): L47–L50. arXiv:0807.3739. Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273. S2CID 118658022.

[aigrain08-5] Aigrain, S.; et al. (2008). "Transiting exoplanets from the CoRoT space mission IV. CoRoT-Exo-4b: a transiting planet in a 9.2 day synchronous orbit". Astronomy & Astrophysics Letters. 488 (2): L43–L46. arXiv:0807.3767. Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246. S2CID 115916135.

[6] Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Archived from the original on 2010-01-18. Retrieved 2009-03-19.

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Observation data Epoch J2000 Equinox J2000
Constellation	Monoceros
Right ascension	06^h 48^m 46.7134^s^[1]
Declination	−00° 40′ 21.9695″^[1]
Apparent magnitude (V)	13.45^[2]
Characteristics
Spectral type	F8V^[2]
Apparent magnitude (R)	13.42^[3]
Apparent magnitude (J)	12.619 ±0.026^[3]
Apparent magnitude (H)	12.359 ±0.029^[3]
Apparent magnitude (K)	12.29 ±0.03^[3]
R−I color index	13.531 [0.019]^[3]
Astrometry

Proper motion (μ)	RA: −3.659±0.049^[1] mas/yr Dec.: −3.898±0.044^[1] mas/yr
Parallax (π)	1.3484 ± 0.0280 mas^[1]
Distance	2,420 ± 50 ly (740 ± 20 pc)

Details

Mass	1.16^+0.03 _−0.02^[4] `M`_☉
Radius	1.17^+0.01 _−0.03^[4] `R`_☉
Temperature	6190 ± 60^[4] K
Metallicity	[Fe/H] = 0 ± 0.15^[2]
Rotation	8.87 ± 1.12 d^[5]
Rotational velocity (v sin i)	6.4 ± 1.0^[4] km/s
Age	1^+1.0 _−0.3 Gyr^[4] years

Other designations
GSC 04800-02187, GSC2 S1002103169, UCAC2 31467163, CoRoT-Exo-4, 2MASS J06484671-0040219, USNO-B1.0 0893-00105986
Database references
SIMBAD	data

Planetary system

See also

References

External links