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Exoplanet List of exoplanets
Exoplanet Comparison CoRoT-4 b.png
Size comparison of COROT-4b with Jupiter.
Parent star
Star COROT-4
Constellation Monoceros
Right ascension (α) 06h 48m 46.70s[1]
Declination (δ) −00° 40′ 21.97″[1]
Spectral type F0V[2]
Orbital elements
Semi-major axis (a) 0.090 ± 0.001[3] AU
Eccentricity (e) 0.0 ± 0.1[3]
Orbital period (P) 9.20205 ± 0.00037[3] d
Inclination (i) 90[1]°
Time of transit (Tt) 2454141.36416 ± 0.00089[1] JD
Physical characteristics
Mass (m) 0.72 ± 0.08[3] MJ
Radius (r) 1.17+0.06
[3] RJ
Density (ρ) 525 ± 15[3] kg m−3
Temperature (T) 1074 ± 19[3]
Discovery information
Discovery date 2008
Discoverer(s) Corot mission
Discovery method Transit method
Discovery site Earth's orbit
Discovery status Published

COROT-4b (formerly known as COROT-Exo-4b[4]) is an extrasolar planet orbiting the star COROT-4. It is probably in synchronous orbit with stellar rotation.[1] It was discovered by the French COROT mission in 2008.


  1. ^ a b c d e S. Aigrain; 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. Bibcode:2008A&A...488L..43A. arXiv:0807.3767Freely accessible. doi:10.1051/0004-6361:200810246. 
  2. ^ Schneider, J. "Notes for star CoRoT-4". The Extrasolar Planets Encyclopaedia. Retrieved 2009-03-19. 
  3. ^ a b c d e f g 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. Bibcode:2008A&A...488L..47M. arXiv:0807.3739Freely accessible. doi:10.1051/0004-6361:200810273. 
  4. ^ Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Retrieved 2009-03-19. 

External links[edit]

Media related to COROT-4b at Wikimedia Commons

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