Imaginary Picture of K2-83 b

Display orbital revolution of K2-83 b around the hoststar K2-83
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Exoplanet Name : K2-83 b
Alternate Name : EPIC 210508766.01
Status : Confirmed
Radius (Rjup / Re): 0.1110 (Rjup) 1.2442 (Rearth)
Mass (Mjup / Me): 0.0068 (Mjup) 2.1505 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0301 (AU) 0.0301 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0075
Orbital Period(Observed/Estimated) 2.75 (Days Obs.) 2.76 (Days Est.)
Surface Gravity (G Earth) 1.3892
Star Radiation at Atmospheric Boundary: 55657.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 685.5 (K)
Blackbody T 0.3(K) 643.8 (K)
Blackbody T 0.7(K) 520.9 (K)
Tidally Locked Blackbody T 0.1(K) 815.2 (K)
Tidally Locked Blackbody T 0.3(K) 765.6 (K)
Size Class: super-Earth-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 : K2-83
Alternate Name : "2MASS J03593637+1533320, EPIC 210508766, WISE J035936.34+153331.8"
Star Distance(LY) : 409.7
Stellar Radius(Rsun) : 0.4 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3910 (K)
Spectral type : K7
UV portion[%]: 0.6
Visible portion[%]: 22.0
IR portion[%]: 77.4
Metalicity : 0.0
Absolute Magnitude: 6.1
Apparent Magnitude: 11.6
Right Ascension(RA) 59.9016
Declination (DEC) 15.5589
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=K2-83+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-83 b
K2-83 b

  • K2-83 b is an exoplanet orbiting the star K2-83, located about 409.7 light-years (125.6 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star K2-83 has apparent magnitude of 11.6, with absolute magnitude of 6.1.
  • It is 0.5 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3910 with its spectral types of K7
  • In this planetary system, the extrasolar planet K2-83 b orbits around the star K2-83 every 2.7 days with its orbital distance of 0.03 AU ( 4508879.8 km)
  • (Projected orbit of K2-83 b around its host star K2-83)


  • The Star K2-83 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.139 AU ( 20809465.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.192 AU ( 28764119.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.293 AU ( 43830151.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.431 AU ( 64497988.5 km)
  • Radiation at Planetary Boundary of K2-83 b : 55657.53 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-83)



  • Kopparapu Recent Venus for Star K2-83 distance : 0.156 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-83 distance : 0.198 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-83 distance : 0.191 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-83 distance : 0.210 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-83 distance : 0.377 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-83 distance : 0.397 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-83)



  • Original Kopparapu Recent Venus for Star K2-83 distance : 0.154 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-83 distance : 0.204 AU
  • Original Kopparapu Moist Greenhouse for Star K2-83 distance : 0.204 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-83 distance : 0.383 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-83 distance : 0.398 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-83)



    (Position in Stellar Map of star K2-83 and its Exoplanet K2-83 b)



    (Zoomed position in Stellar Map of star K2-83 and its Exoplanet K2-83 b (zoom level 3))

    (Synthetic Spectrum of star K2-83*)
    *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