COROT-4

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COROT-4
Observation data
Epoch J2000      Equinox J2000
Constellation Monoceros
Right ascension 06h 48m 46.715s[1]
Declination −00° 40′ 21.98″[1]
Apparent magnitude (V) 13.45[2]
Characteristics
Spectral type F8V[2]
Apparent magnitude (R) 13.42[1]
Apparent magnitude (J) 12.619 ±0.026[1]
Apparent magnitude (H) 12.359 ±0.029[1]
Apparent magnitude (K) 12.29 ±0.03[1]
R−I color index 13.531 [0.019][1]
Astrometry
Proper motion (μ) RA: -9.3[1] mas/yr
Dec.: -6.4[1] mas/yr
Distance ? ly
(? pc)
Details
Mass 1.16+0.03
−0.02
[3] M
Radius 1.17+0.01
−0.03
[3] R
Temperature 6190 ± 60[3] K
Metallicity [Fe/H] = 0 ± 0.15[2]
Rotation 8.87 ± 1.12 d[4]
Rotational velocity (v sin i) 6.4 ± 1.0[3] km/s
Age 1+1.0
−0.3
Gyr[3] 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
Extrasolar Planets
Encyclopaedia
data

COROT-4 (formerly known as COROT-Exo-4[5]) is a yellow-white dwarf main-sequence star in the constellation Monoceros.[1]

Planetary system[edit]

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.[4]

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[edit]

References[edit]

  1. ^ a b c d e f g h i j "SIMBAD query result: GSC 04800-02187 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-27. 
  2. ^ a b c Schneider, J. "Notes for star CoRoT-4". The Extrasolar Planets Encyclopaedia. Retrieved 2009-03-19. 
  3. ^ 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. 
  4. ^ 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. 
  5. ^ Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Retrieved 2009-03-19. 

External links[edit]

  • "CoRot-4". Exoplanets. Retrieved 2009-04-28. 

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