Imaginary Picture of K2-361 b

Display orbital revolution of K2-361 b around the hoststar K2-361
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Exoplanet Name : K2-361 b
Alternate Name : "EPIC 212624936 b, EPIC 212624936.02"
Status : Confirmed
Radius (Rjup / Re): 0.1070 (Rjup) 1.1994 (Rearth)
Mass (Mjup / Me): 0.0059 (Mjup) 1.8826 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0136 (AU) 0.0136 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0016
Orbital Period(Observed/Estimated) 0.58 (Days Obs.) 0.58 (Days Est.)
Surface Gravity (G Earth) 1.3088
Star Radiation at Atmospheric Boundary: 5531970.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2164.5 (K)
Blackbody T 0.3(K) 2032.7 (K)
Blackbody T 0.7(K) 1644.7 (K)
Tidally Locked Blackbody T 0.1(K) 2574.1 (K)
Tidally Locked Blackbody T 0.3(K) 2417.3 (K)
Size Class: Earth-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 : K2-361
Alternate Name : EPIC 212624936
Star Distance(LY) : 1832.8
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5627 (K)
Spectral type : G4V
UV portion[%]: 7.4
Visible portion[%]: 44.0
IR portion[%]: 48.6
Metalicity : -0.4
Absolute Magnitude: 5.3
Apparent Magnitude: 14.0
Right Ascension(RA) 210.6378
Declination (DEC) -10.0237
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
K2-361 b
K2-361 b

  • K2-361 b is an exoplanet orbiting the star K2-361, located about 1832.8 light-years (561.9 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star K2-361 has apparent magnitude of 14.0, with absolute magnitude of 5.3.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5627 with its spectral types of G4V
  • In this planetary system, the extrasolar planet K2-361 b orbits around the star K2-361 every 0.6 days with its orbital distance of 0.01 AU ( 2033932.7 km)
  • (Projected orbit of K2-361 b around its host star K2-361)


  • The Star K2-361 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.626 AU ( 93585115.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.865 AU ( 129359086.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.318 AU ( 197114620.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.939 AU ( 290062799.3 km)
  • Radiation at Planetary Boundary of K2-361 b : 5531970.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-361)



  • Kopparapu Recent Venus for Star K2-361 distance : 0.654 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-361 distance : 0.828 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-361 distance : 0.800 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-361 distance : 0.877 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-361 distance : 1.469 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-361 distance : 1.550 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-361)



  • Original Kopparapu Recent Venus for Star K2-361 distance : 0.653 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-361 distance : 0.852 AU
  • Original Kopparapu Moist Greenhouse for Star K2-361 distance : 0.864 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-361 distance : 1.495 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-361 distance : 1.554 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-361)



    (Position in Stellar Map of star K2-361 and its Exoplanet K2-361 b)



    (Zoomed position in Stellar Map of star K2-361 and its Exoplanet K2-361 b (zoom level 3))

    (Synthetic Spectrum of star K2-361*)
    *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