CoRoT-4

Last updated
CoRoT-4
Observation data
Epoch J2000       Equinox J2000
Constellation Monoceros [1]
Right ascension 06h 48m 46.7134s [2]
Declination −00° 40′ 21.970″ [2]
Apparent magnitude  (V)13.45 [3]
Characteristics
Evolutionary stage main sequence [4]
Spectral type F8V [3]
Apparent magnitude  (R)13.42 [5]
Apparent magnitude  (J)12.619±0.026 [5]
Apparent magnitude  (H)12.359±0.029 [5]
Apparent magnitude  (K)12.29±0.03 [5]
Astrometry
Proper motion (μ)RA: −3.659±0.049 [2] mas/yr
Dec.: −3.898±0.044 [2] mas/yr
Parallax (π)1.3484±0.0280  mas [2]
Distance 2,420 ± 50  ly
(740 ± 20  pc)
Details
Mass 1.16+0.03
−0.02 [6]   M☉
Radius 1.17+0.01
−0.03 [6]   R☉
Luminosity 1.5 [7]   L☉
Surface gravity (log g)4.42 [7]   cgs
Temperature 6,190±60 [6]   K
Metallicity [Fe/H]0.00±0.15 [8]   dex
Rotation 8.87±1.12 d [8]
Rotational velocity (v sin i)6.4±1.0 [6]  km/s
Age 1+1.0
−0.3 [6]   Gyr
Other designations
GSC 04800-02187, GSC2 S1002103169, UCAC2 31467163, CoRoT-Exo-4, 2MASS J06484671-0040219, USNO-B1.0 0893-00105986 [5]
Database references
SIMBAD data

CoRoT-4 (formerly known as CoRoT-Exo-4 [9] ) is a yellow-white dwarf main-sequence star in the constellation Monoceros.

Contents

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. [8]

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  MJ 0.090±0.0019.20205±0.000370——

See also

References

  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.
  2. 1 2 3 4 5 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. 1 2 Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia . Archived from the original on August 19, 2009. Retrieved 2009-03-19.
  4. ↑ Lanza, A. F.; Aigrain, S.; Messina, S.; Leto, G.; Pagano, I.; Auvergne, M.; Baglin, A.; Barge, P.; Bonomo, A. S.; Collier Cameron, A.; Cutispoto, G.; Deleuil, M.; De Medeiros, J. R.; Foing, B.; Moutou, C. (2009). "Photospheric activity and rotation of the planet-hosting star CoRoT-4a". Astronomy and Astrophysics. 506 (1): 255. arXiv: 0901.4618 . Bibcode:2009A&A...506..255L. doi:10.1051/0004-6361/200811487.
  5. 1 2 3 4 5 "CoRoT-4". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2009-04-27.
  6. 1 2 3 4 5 Moutou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission. V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy and Astrophysics. 488 (2): L47 –L50. arXiv: 0807.3739 . Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273.
  7. 1 2 Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv: 1905.10694 . Bibcode:2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467 .
  8. 1 2 3 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 and Astrophysics. 488 (2): L43 –L46. arXiv: 0807.3767 . Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246.
  9. ↑ 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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