Imaginary Picture of K2-141 b
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Exoplanet Name : K2-141 b
Alternate Name : EPIC 246393474 b
Radius (Rjup / Re): 0.1350 (Rjup) 1.5132 (Rearth)
Mass (Mjup / Me): 0.0160 (Mjup) 5.0870 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0075 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0008
Orbital Period(Observed/Estimated) 0.28 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 4557950.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2062.2 (K)
Blackbody T 0.3(K) 1936.6 (K)
Blackbody T 0.7(K) 1566.9 (K)
Tidally Locked Blackbody T 0.1(K) 2452.4 (K)
Tidally Locked Blackbody T 0.3(K) 2303.1 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : K2-141
Alternate Name : "EPIC 246393474 , 2MASS J23233996-0111215"
Star Distance(LY) : 199.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 6.3 (GY)
Temperature : 4599 (K)
Spectral type : K4
Metalicity : -0.1
Absolute Magnitude: 7.6
Apparent Magnitude: 11.5
Right Ascension(RA) 350.9167
Declination (DEC) -1.1892
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
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SIMBAD LINK
Open Exoplanet Database Link
K2-141 b
K2-141 b

  • K2-141 b is an exoplanet orbiting the star K2-141 , located about 199.0 light-years (61.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star K2-141 has apparent magnitude of 11.5, with absolute magnitude of 7.6.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4599 with its spectral types of K4
  • In this planetary system, the extrasolar planet K2-141 b orbits around the star K2-141 every 0.3 days with its orbital distance of 0.01 AU ( 1117678.6 km)
  • (Projected orbit of K2-141 b around its host star K2-141 )


  • The Star K2-141 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.312 AU ( 46680128.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.431 AU ( 64524136.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.657 AU ( 98320505.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.967 AU ( 144682930.4 km)
  • Radiation at Planetary Boundary of K2-141 b : 4557950.44 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-141 )



  • Kopparapu Recent Venus for Star K2-141 distance : 0.343 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-141 distance : 0.435 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-141 distance : 0.420 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-141 distance : 0.461 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-141 distance : 0.802 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-141 distance : 0.846 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-141 )



  • Original Kopparapu Recent Venus for Star K2-141 distance : 0.339 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-141 distance : 0.449 AU
  • Original Kopparapu Moist Greenhouse for Star K2-141 distance : 0.448 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-141 distance : 0.815 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-141 distance : 0.847 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-141 )



    (Position in Stellar Map of star K2-141 and its Exoplanet K2-141 b)



    (Zoomed position in Stellar Map of star K2-141 and its Exoplanet K2-141 b (zoom level 3))