Imaginary Picture of AB Dor C b

Display orbital revolution of AB Dor C b around the hoststar AB Dor C
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Exoplanet Name : AB Dor C b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 13.0000 (Mjup) 4133.1940 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.5800 (AU) 0.5800 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 601.27 (Days Est.)
Surface Gravity (G Earth) 39.9156
Star Radiation at Atmospheric Boundary: 1.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 44.7 (K)
Blackbody T 0.3(K) 42.0 (K)
Blackbody T 0.7(K) 33.9 (K)
Tidally Locked Blackbody T 0.1(K) 53.1 (K)
Tidally Locked Blackbody T 0.3(K) 49.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : AB Dor C
Alternate Name :
Star Distance(LY) : 51.5
Stellar Radius(Rsun) : 0.1 (Rsun Estimated)
Stellar Mass(Msun) : 0.1 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 2700 (K)
Spectral type : M8
UV portion[%]: 0.2
Visible portion[%]: 4.0
IR portion[%]: 95.8
Metalicity : 0.0
Absolute Magnitude: 21.0
Apparent Magnitude: 22.0
Right Ascension(RA) 82.4333
Declination (DEC) -65.4483
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=AB+Dor+C+&submit=SIMBAD+search
Open Exoplanet Database Link
AB Dor C b
AB Dor C b

  • AB Dor C b is an exoplanet orbiting the star AB Dor C, located about 51.5 light-years (15.8 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star AB Dor C has apparent magnitude of 22.0, with absolute magnitude of 21.0.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2700 with its spectral types of M8
  • (Projected orbit of AB Dor C b around its host star AB Dor C)


  • The Star AB Dor C 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.011 AU ( 1701054.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.016 AU ( 2351301.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.024 AU ( 3582862.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.035 AU ( 5272339.8 km)
  • Radiation at Planetary Boundary of AB Dor C b : 1.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star AB Dor C)



  • Kopparapu Recent Venus for Star AB Dor C distance : 0.013 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star AB Dor C distance : 0.016 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star AB Dor C distance : 0.016 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star AB Dor C distance : 0.017 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star AB Dor C distance : 0.033 AU
  • Kopparapu Outer Boundary for Early Mars for Star AB Dor C distance : 0.035 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star AB Dor C)



  • Original Kopparapu Recent Venus for Star AB Dor C distance : 0.013 AU
  • Original Kopparapu Runaway Greenhouse for Star AB Dor C distance : 0.017 AU
  • Original Kopparapu Moist Greenhouse for Star AB Dor C distance : 0.017 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star AB Dor C distance : 0.034 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star AB Dor C distance : 0.035 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star AB Dor C)



    (Position in Stellar Map of star AB Dor C and its Exoplanet AB Dor C b)



    (Zoomed position in Stellar Map of star AB Dor C and its Exoplanet AB Dor C b (zoom level 3))

    (Synthetic Spectrum of star AB Dor C*)
    *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