Imaginary Picture of K2-107 b

Display orbital revolution of K2-107 b around the hoststar K2-107
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Exoplanet Name : K2-107 b
Alternate Name : "EPIC 216468514 b, 2MASS J18595649-2217363 b, EPIC 216468514.01, WISE J185956.48-221736.2 b"
Status : Confirmed
Radius (Rjup / Re): 1.4260 (Rjup) 15.9840 (Rearth)
Mass (Mjup / Me): 0.8400 (Mjup) 267.0679 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0475 (AU) 0.0475 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0091
Orbital Period(Observed/Estimated) 3.31 (Days Obs.) 3.32 (Days Est.)
Surface Gravity (G Earth) 1.0453
Star Radiation at Atmospheric Boundary: 2402989.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1757.2 (K)
Blackbody T 0.3(K) 1650.2 (K)
Blackbody T 0.7(K) 1335.2 (K)
Tidally Locked Blackbody T 0.1(K) 2089.7 (K)
Tidally Locked Blackbody T 0.3(K) 1962.5 (K)
Size Class: Super-Jupiter-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 : K2-107
Alternate Name : "2MASS 18595649-221736, EPIC 216468514, 2MASS J18595649-2217363, WISE J185956.48-221736.2"
Star Distance(LY) : 2277.0
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 4.2 (GY)
Temperature : 6061 (K)
Spectral type : F9 IV
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 2.3
Apparent Magnitude: 11.6
Right Ascension(RA) 284.9854
Declination (DEC) -22.2934
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=K2-107+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-107 b
K2-107 b

  • K2-107 b is an exoplanet orbiting the star K2-107, located about 2277.0 light-years (698.1 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star K2-107 has apparent magnitude of 11.6, with absolute magnitude of 2.3.
  • It is 1.3 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 6061 with its spectral types of F9 IV
  • In this planetary system, the extrasolar planet K2-107 b orbits around the star K2-107 every 3.3 days with its orbital distance of 0.05 AU ( 7105898.9 km)
  • (Projected orbit of K2-107 b around its host star K2-107)


  • The Star K2-107 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.440 AU ( 215489074.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.991 AU ( 297862214.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.034 AU ( 453876098.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.465 AU ( 667898561.7 km)
  • Radiation at Planetary Boundary of K2-107 b : 2402989.52 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-107)



  • Kopparapu Recent Venus for Star K2-107 distance : 1.468 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-107 distance : 1.858 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-107 distance : 1.795 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-107 distance : 1.967 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-107 distance : 3.259 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-107 distance : 3.438 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-107)



  • Original Kopparapu Recent Venus for Star K2-107 distance : 1.478 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-107 distance : 1.908 AU
  • Original Kopparapu Moist Greenhouse for Star K2-107 distance : 1.956 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-107 distance : 3.317 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-107 distance : 3.450 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-107)



    (Position in Stellar Map of star K2-107 and its Exoplanet K2-107 b)



    (Zoomed position in Stellar Map of star K2-107 and its Exoplanet K2-107 b (zoom level 3))

    (Synthetic Spectrum of star K2-107*)
    *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