Imaginary Picture of CoRoT-20 b
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Exoplanet Name : CoRoT-20 b
Alternate Name :
Radius (Rjup / Re): 0.8400 (Rjup) 9.4156 (Rearth)
Mass (Mjup / Me): 4.2400 (Mjup) 1348.0571 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0902 (AU) 0.0902 (AU Est.)
Eccentricity : 0.5620
Orbital Period(Yrs) 0.0253
Orbital Period(Observed/Estimated) 9.24 (Days Obs.) 9.27 (Days Est.)
Star Radiation at Atmospheric Boundary: 152502.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 882.0 (K)
Blackbody T 0.3(K) 828.3 (K)
Blackbody T 0.7(K) 670.2 (K)
Tidally Locked Blackbody T 0.1(K) 1048.9 (K)
Tidally Locked Blackbody T 0.3(K) 985.0 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : CoRoT-20
Alternate Name :
Star Distance(LY) : 4011.7
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 5880 (K)
Spectral type : G2V
Metalicity : 0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 14.7
Right Ascension(RA) 97.7204
Declination (DEC) 0.2269
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors CUTRI R.M.; SKRUTSKIE M.F.; VAN DYK S.; BEICHMAN C.A.; CARPENTER J.M.; CHESTER T.; CAMBRESY L.; EVANS T.; FOWLER J.; GIZIS J.; HOWARD E.; HUCHRA J.; JARRETT T.; KOPAN E.L.; KIRKPATRICK J.D.; LIGHT R.M.; MARSH K.A.; McCALLON H.; SCHNEIDER S.; STIENING R.; SYKES M.; WEINBERG M.; WHEATON W.A.; WHEELOCK S.; ZACARIAS N.
Discovery Paper - Title 2MASS All Sky Catalog of point sources.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=CoRoT-20+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/CoRoT-20%20b/
CoRoT-20 b
CoRoT-20 b

  • CoRoT-20 b is an exoplanet orbiting the star CoRoT-20, located about 4011.7 light-years (1230.0 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star CoRoT-20 has apparent magnitude of 14.7, with absolute magnitude of 4.2.
  • It is 1.1 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5880 with its spectral types of G2V
  • In this planetary system, the extrasolar planet CoRoT-20 b orbits around the star CoRoT-20 every 9.2 days with its orbital distance of 0.09 AU ( 13493727.9 km)
  • (Projected orbit of CoRoT-20 b around its host star CoRoT-20)


  • The Star CoRoT-20 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.689 AU ( 103086214.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.953 AU ( 142492088.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.451 AU ( 217126408.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.136 AU ( 319511022.3 km)
  • Radiation at Planetary Boundary of CoRoT-20 b : 152502.41 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star CoRoT-20)



  • Kopparapu Recent Venus for Star CoRoT-20 distance : 0.710 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star CoRoT-20 distance : 0.899 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star CoRoT-20 distance : 0.868 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star CoRoT-20 distance : 0.952 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star CoRoT-20 distance : 1.583 AU
  • Kopparapu Outer Boundary for Early Mars for Star CoRoT-20 distance : 1.670 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star CoRoT-20)



  • Original Kopparapu Recent Venus for Star CoRoT-20 distance : 0.712 AU
  • Original Kopparapu Runaway Greenhouse for Star CoRoT-20 distance : 0.923 AU
  • Original Kopparapu Moist Greenhouse for Star CoRoT-20 distance : 0.942 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star CoRoT-20 distance : 1.611 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star CoRoT-20 distance : 1.675 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star CoRoT-20)



    (Position in Stellar Map of star CoRoT-20 and its Exoplanet CoRoT-20 b)



    (Zoomed position in Stellar Map of star CoRoT-20 and its Exoplanet CoRoT-20 b (zoom level 3))