COROT-4

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
Distance2,507 ± 205[3] ly
(768.7±62.9[3] 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.[1]

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

References

  1. 1 2 3 4 5 6 7 8 9 10 "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.
  2. 1 2 3 Schneider, J. "Notes for star CoRoT-4". The Extrasolar Planets Encyclopaedia. Retrieved 2009-03-19.
  3. 1 2 Evans, D. F; et al. (2016). "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP)". Astronomy and Astrophysics. 589. A58. arXiv:1603.03274. Bibcode:2016A&A...589A..58E. doi:10.1051/0004-6361/201527970.
  4. 1 2 3 4 5 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.
  5. 1 2 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.
  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.
  • "CoRot-4". Exoplanets. Retrieved 2009-04-28.

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

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