Imaginary Picture of K2-130 b

Display orbital revolution of K2-130 b around the hoststar K2-130
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Exoplanet Name : K2-130 b
Alternate Name : "EPIC 217941732 b, 2MASS J19210486-1941269 b, EPIC 217941732.01, WISE J192104.90-194127.0 b"
Status : Confirmed
Radius (Rjup / Re): 0.1120 (Rjup) 1.2554 (Rearth)
Mass (Mjup / Me): 0.0070 (Mjup) 2.2217 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0320 (AU) 0.0320 (AU Est.)
Eccentricity : 0.1700
Orbital Period(Yrs) 0.0068
Orbital Period(Observed/Estimated) 2.49 (Days Obs.) 2.50 (Days Est.)
Surface Gravity (G Earth) 1.4097
Star Radiation at Atmospheric Boundary: 236112.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 983.8 (K)
Blackbody T 0.3(K) 923.9 (K)
Blackbody T 0.7(K) 747.6 (K)
Tidally Locked Blackbody T 0.1(K) 1170.0 (K)
Tidally Locked Blackbody T 0.3(K) 1098.7 (K)
Size Class: super-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 : K2-130
Alternate Name : "EPIC 217941732, 2MASS J19210486-1941269, WISE J192104.90-194127.0"
Star Distance(LY) : 386.2
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4356 (K)
Spectral type : K5V
UV portion[%]: 1.1
Visible portion[%]: 28.5
IR portion[%]: 70.4
Metalicity : 0.0
Absolute Magnitude: 5.2
Apparent Magnitude: 10.6
Right Ascension(RA) 290.2703
Declination (DEC) -19.6908
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=K2-130+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-130 b
K2-130 b

  • K2-130 b is an exoplanet orbiting the star K2-130, located about 386.2 light-years (118.4 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star K2-130 has apparent magnitude of 10.6, with absolute magnitude of 5.2.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4356 with its spectral types of K5V
  • In this planetary system, the extrasolar planet K2-130 b orbits around the star K2-130 every 2.5 days with its orbital distance of 0.03 AU ( 4787131.9 km)
  • (Projected orbit of K2-130 b around its host star K2-130)


  • The Star K2-130 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.304 AU ( 45505676.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.420 AU ( 62900736.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.641 AU ( 95846803.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.943 AU ( 141042769.5 km)
  • Radiation at Planetary Boundary of K2-130 b : 236112.93 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-130)



  • Kopparapu Recent Venus for Star K2-130 distance : 0.338 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-130 distance : 0.427 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-130 distance : 0.413 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-130 distance : 0.453 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-130 distance : 0.797 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-130 distance : 0.841 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-130)



  • Original Kopparapu Recent Venus for Star K2-130 distance : 0.333 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-130 distance : 0.441 AU
  • Original Kopparapu Moist Greenhouse for Star K2-130 distance : 0.441 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-130 distance : 0.810 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-130 distance : 0.842 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-130)



    (Position in Stellar Map of star K2-130 and its Exoplanet K2-130 b)



    (Zoomed position in Stellar Map of star K2-130 and its Exoplanet K2-130 b (zoom level 3))

    (Synthetic Spectrum of star K2-130*)
    *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