Imaginary Picture of CoRoT-20 c

Display orbital revolution of CoRoT-20 c around the hoststar CoRoT-20
/
Exoplanet Name : CoRoT-20 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 17.0000 (Mjup) 5404.9460 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.9000 (AU) 2.9000 (AU Est.)
Eccentricity : 0.6000
Orbital Period(Yrs) 4.5858
Orbital Period(Observed/Estimated) 1675.00 (Days Obs.) 1689.41 (Days Est.)
Surface Gravity (G Earth) 52.1974
Star Radiation at Atmospheric Boundary: 147.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 155.5 (K)
Blackbody T 0.3(K) 146.1 (K)
Blackbody T 0.7(K) 118.2 (K)
Tidally Locked Blackbody T 0.1(K) 185.0 (K)
Tidally Locked Blackbody T 0.3(K) 173.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
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) 1.2 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 5880 (K)
Spectral type : G2V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 14.7
Right Ascension(RA) 97.7304
Declination (DEC) 0.2269
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Corot-20+&submit=SIMBAD+search
Open Exoplanet Database Link
CoRoT-20 c
CoRoT-20 c

  • CoRoT-20 c 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 2018.
  • 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 c orbits around the star CoRoT-20 every 1675.0 days with its orbital distance of 2.90 AU ( 433833825.0 km)
  • (Projected orbit of CoRoT-20 c 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 c : 147.53 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 c)



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

    (Synthetic Spectrum of star CoRoT-20*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102