Imaginary Picture of K2-100 b
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Exoplanet Name : K2-100 b
Alternate Name : EPIC 211990866 b
Radius (Rjup / Re): 0.3100 (Rjup) 3.4748 (Rearth)
Mass (Mjup / Me): 0.0264 (Mjup) 8.4019 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0292 (AU Est.)
Eccentricity : 0.2400
Orbital Period(Yrs) 0.0046
Orbital Period(Observed/Estimated) 1.67 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 2865883.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1836.4 (K)
Blackbody T 0.3(K) 1724.5 (K)
Blackbody T 0.7(K) 1395.3 (K)
Tidally Locked Blackbody T 0.1(K) 2183.8 (K)
Tidally Locked Blackbody T 0.3(K) 2050.8 (K)
Size Class: 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 : K2-100
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.8 (GY)
Temperature : 6120 (K)
Spectral type : G0
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 9.5
Right Ascension(RA) 129.6012
Declination (DEC) 20.1061
Hubble Space Telescope Guide Star Catalog (GSC) ID 01398-00142
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=EPIC+211990866+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-100 b
K2-100 b

  • K2-100 b is an exoplanet orbiting the star K2-100. Its discovery was publicly announced on 2016.
  • The host star K2-100 has apparent magnitude of 9.5, with absolute magnitude of 25.0.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6120 with its spectral types of G0
  • In this planetary system, the extrasolar planet K2-100 b orbits around the star K2-100 every 1.7 days with its orbital distance of 0.03 AU ( 4361625.5 km)
  • (Projected orbit of K2-100 b around its host star K2-100)


  • The Star K2-100 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.966 AU ( 144446797.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.335 AU ( 199663222.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.034 AU ( 304242566.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.993 AU ( 447706264.2 km)
  • Radiation at Planetary Boundary of K2-100 b : 2865883.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-100)



  • Kopparapu Recent Venus for Star K2-100 distance : 0.980 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-100 distance : 1.241 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-100 distance : 1.199 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-100 distance : 1.314 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-100 distance : 2.174 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-100 distance : 2.293 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-100)



  • Original Kopparapu Recent Venus for Star K2-100 distance : 0.989 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-100 distance : 1.274 AU
  • Original Kopparapu Moist Greenhouse for Star K2-100 distance : 1.308 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-100 distance : 2.213 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-100 distance : 2.301 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-100)



    (Position in Stellar Map of star K2-100 and its Exoplanet K2-100 b)



    (Zoomed position in Stellar Map of star K2-100 and its Exoplanet K2-100 b (zoom level 3))