Astronomy:COROT-4

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COROT-4
Observation data
Equinox J2000.0]] (ICRS)
Constellation Monoceros
Right ascension  06h 48m 46.7134s[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[1] mas
Distance2,420 ± 50 ly
(740 ± 20 pc)
Details
Mass1.16+0.03−0.02[4] M☉
Radius1.17+0.01−0.03[4] R☉
Temperature6190 ± 60[4] K
Metallicity[Fe/H] = 0 ± 0.15[2]
Rotation8.87 ± 1.12 d[5]
Rotational velocity (v sin i)6.4 ± 1.0[4] km/s
Age1+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
SIMBADdata
Extrasolar Planets
Encyclopaedia		data

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 MJ 0.090 ± 0.001 9.20205 ± 0.00037 0 — —

See also

  • COROT
  • List of extrasolar planets

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 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. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. ↑ 2.0 2.1 2.2 Schneider, J.. "Notes for star CoRoT-4". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=CoRoT-4. Retrieved 2009-03-19. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=CoRoT-4. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 Montou, C. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters 488 (2): L47–L50. doi:10.1051/0004-6361:200810273. Bibcode: 2008A&A...488L..47M. 
  5. ↑ 5.0 5.1 Aigrain, S. (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. doi:10.1051/0004-6361:200810246. Bibcode: 2008A&A...488L..43A. 
  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.

External links

Coordinates: Sky map 06h 48m 46.70s, −00° 40′ 21.97″




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