Imaginary Picture of K2-183 c

Display orbital revolution of K2-183 c around the hoststar K2-183
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Exoplanet Name : K2-183 c
Alternate Name : "2MASS J08200170+1401100 c, EPIC 211562654 c, EPIC 211562654.01, WISE J082001.72+140110.0 c"
Status : Confirmed
Radius (Rjup / Re): 0.2560 (Rjup) 2.8695 (Rearth)
Mass (Mjup / Me): 0.0221 (Mjup) 7.0319 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0932 (AU) 0.0932 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0295
Orbital Period(Observed/Estimated) 10.79 (Days Obs.) 10.78 (Days Est.)
Surface Gravity (G Earth) 0.8540
Star Radiation at Atmospheric Boundary: 123241.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 836.2 (K)
Blackbody T 0.3(K) 785.3 (K)
Blackbody T 0.7(K) 635.4 (K)
Tidally Locked Blackbody T 0.1(K) 994.5 (K)
Tidally Locked Blackbody T 0.3(K) 933.9 (K)
Size Class: sub-Neptune-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 : K2-183
Alternate Name : "2MASS J08200170+1401100, EPIC 211562654, WISE J082001.72+140110.0"
Star Distance(LY) : 1046.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5519 (K)
Spectral type : G7
UV portion[%]: 7.0
Visible portion[%]: 43.4
IR portion[%]: 49.7
Metalicity : 0.1
Absolute Magnitude: 4.0
Apparent Magnitude: 11.5
Right Ascension(RA) 125.0072
Declination (DEC) 14.0195
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=K2-183+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-183 c
K2-183 c

  • K2-183 c is an exoplanet orbiting the star K2-183, located about 1046.0 light-years (320.7 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star K2-183 has apparent magnitude of 11.5, with absolute magnitude of 4.0.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5519 with its spectral types of G7
  • In this planetary system, the extrasolar planet K2-183 c orbits around the star K2-183 every 10.8 days with its orbital distance of 0.09 AU ( 13942521.5 km)
  • (Projected orbit of K2-183 c around its host star K2-183)


  • The Star K2-183 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.640 AU ( 95752613.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.885 AU ( 132355134.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.348 AU ( 201679934.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.984 AU ( 296780859.1 km)
  • Radiation at Planetary Boundary of K2-183 c : 123241.80 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-183)



  • Kopparapu Recent Venus for Star K2-183 distance : 0.674 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-183 distance : 0.853 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-183 distance : 0.824 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-183 distance : 0.903 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-183 distance : 1.518 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-183 distance : 1.601 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-183)



  • Original Kopparapu Recent Venus for Star K2-183 distance : 0.671 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-183 distance : 0.877 AU
  • Original Kopparapu Moist Greenhouse for Star K2-183 distance : 0.888 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-183 distance : 1.544 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-183 distance : 1.606 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-183)



    (Position in Stellar Map of star K2-183 and its Exoplanet K2-183 c)



    (Zoomed position in Stellar Map of star K2-183 and its Exoplanet K2-183 c (zoom level 3))

    (Synthetic Spectrum of star K2-183*)
    *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