Imaginary Picture of K2-372 b

Display orbital revolution of K2-372 b around the hoststar K2-372
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Exoplanet Name : K2-372 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2627 (Rjup) 2.9451 (Rearth)
Mass (Mjup / Me): 0.0289 (Mjup) 9.1884 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0857 (AU) 0.0857 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0270
Orbital Period(Observed/Estimated) 9.84 (Days Obs.) 9.96 (Days Est.)
Surface Gravity (G Earth) 1.0594
Star Radiation at Atmospheric Boundary: 127911.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 844.1 (K)
Blackbody T 0.3(K) 792.7 (K)
Blackbody T 0.7(K) 641.3 (K)
Tidally Locked Blackbody T 0.1(K) 1003.8 (K)
Tidally Locked Blackbody T 0.3(K) 942.6 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : K2-372
Alternate Name : EPIC 211490999
Star Distance(LY) : 1513.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5479 (K)
Spectral type : G5V
UV portion[%]: 6.8
Visible portion[%]: 43.1
IR portion[%]: 50.1
Metalicity : -0.1
Absolute Magnitude: 5.3
Apparent Magnitude: 13.6
Right Ascension(RA) 130.7988
Declination (DEC) 13.0096
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
K2-372 b
K2-372 b

  • K2-372 b is an exoplanet orbiting the star K2-372, located about 1513.0 light-years (463.9 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star K2-372 has apparent magnitude of 13.6, with absolute magnitude of 5.3.
  • It is 0.8 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5479 with its spectral types of G5V
  • In this planetary system, the extrasolar planet K2-372 b orbits around the star K2-372 every 9.8 days with its orbital distance of 0.09 AU ( 12820537.5 km)
  • (Projected orbit of K2-372 b around its host star K2-372)


  • The Star K2-372 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.600 AU ( 89699833.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.829 AU ( 123988610.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.263 AU ( 188931203.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.858 AU ( 278020543.0 km)
  • Radiation at Planetary Boundary of K2-372 b : 127911.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-372)



  • Kopparapu Recent Venus for Star K2-372 distance : 0.632 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-372 distance : 0.801 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-372 distance : 0.774 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-372 distance : 0.848 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-372 distance : 1.427 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-372 distance : 1.505 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-372)



  • Original Kopparapu Recent Venus for Star K2-372 distance : 0.630 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-372 distance : 0.824 AU
  • Original Kopparapu Moist Greenhouse for Star K2-372 distance : 0.833 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-372 distance : 1.451 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-372 distance : 1.509 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-372)



    (Position in Stellar Map of star K2-372 and its Exoplanet K2-372 b)



    (Zoomed position in Stellar Map of star K2-372 and its Exoplanet K2-372 b (zoom level 3))

    (Synthetic Spectrum of star K2-372*)
    *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