Imaginary Picture of K2-348 c

Display orbital revolution of K2-348 c around the hoststar K2-348
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Exoplanet Name : K2-348 c
Alternate Name : "EPIC 212204403 c, EPIC 212204403.02"
Status : Confirmed
Radius (Rjup / Re): 0.2382 (Rjup) 2.6700 (Rearth)
Mass (Mjup / Me): 0.0207 (Mjup) 6.5761 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0994 (AU) 0.0994 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0344
Orbital Period(Observed/Estimated) 12.55 (Days Obs.) 12.56 (Days Est.)
Surface Gravity (G Earth) 0.9225
Star Radiation at Atmospheric Boundary: 59615.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 697.4 (K)
Blackbody T 0.3(K) 654.9 (K)
Blackbody T 0.7(K) 529.9 (K)
Tidally Locked Blackbody T 0.1(K) 829.4 (K)
Tidally Locked Blackbody T 0.3(K) 778.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : K2-348
Alternate Name : EPIC 212204403
Star Distance(LY) : 658.4
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5077 (K)
Spectral type : K0V
UV portion[%]: 3.7
Visible portion[%]: 38.1
IR portion[%]: 58.2
Metalicity : 0.1
Absolute Magnitude: 6.0
Apparent Magnitude: 12.6
Right Ascension(RA) 130.8783
Declination (DEC) 24.4231
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
K2-348 c
K2-348 c

  • K2-348 c is an exoplanet orbiting the star K2-348, located about 658.4 light-years (201.9 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star K2-348 has apparent magnitude of 12.6, with absolute magnitude of 6.0.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5077 with its spectral types of K0V
  • In this planetary system, the extrasolar planet K2-348 c orbits around the star K2-348 every 12.6 days with its orbital distance of 0.10 AU ( 14865540.4 km)
  • (Projected orbit of K2-348 c around its host star K2-348)


  • The Star K2-348 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.475 AU ( 71005397.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.656 AU ( 98148015.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.000 AU ( 149555855.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.471 AU ( 220077993.5 km)
  • Radiation at Planetary Boundary of K2-348 c : 59615.71 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-348)



  • Kopparapu Recent Venus for Star K2-348 distance : 0.512 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-348 distance : 0.648 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-348 distance : 0.626 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-348 distance : 0.686 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-348 distance : 1.170 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-348 distance : 1.234 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-348)



  • Original Kopparapu Recent Venus for Star K2-348 distance : 0.507 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-348 distance : 0.667 AU
  • Original Kopparapu Moist Greenhouse for Star K2-348 distance : 0.670 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-348 distance : 1.190 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-348 distance : 1.238 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-348)



    (Position in Stellar Map of star K2-348 and its Exoplanet K2-348 c)



    (Zoomed position in Stellar Map of star K2-348 and its Exoplanet K2-348 c (zoom level 3))

    (Synthetic Spectrum of star K2-348*)
    *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