Imaginary Picture of K2-10 b

Display orbital revolution of K2-10 b around the hoststar K2-10
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Exoplanet Name : K2-10 b
Alternate Name : "2MASS J11282927+0141264 b, EPIC 201577035 b, EPIC 201577035.01, WISE J112829.21+014126.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.3430 (Rjup) 3.8447 (Rearth)
Mass (Mjup / Me): 0.0849 (Mjup) 27.0088 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1370 (AU Est.)
Eccentricity : 0.3100
Orbital Period(Yrs) 0.0529
Orbital Period(Observed/Estimated) 19.30 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.8272
Star Radiation at Atmospheric Boundary: 62621.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 706.0 (K)
Blackbody T 0.3(K) 663.0 (K)
Blackbody T 0.7(K) 536.5 (K)
Tidally Locked Blackbody T 0.1(K) 839.6 (K)
Tidally Locked Blackbody T 0.3(K) 788.5 (K)
Size Class: Neptune-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 : K2-10
Alternate Name : "EPIC 201577035, 2MASS J11282927+0141264, WISE J112829.21+014126.2"
Star Distance(LY) : 890.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5620 (K)
Spectral type : F9
UV portion[%]: 7.3
Visible portion[%]: 44.0
IR portion[%]: 48.7
Metalicity : -0.1
Absolute Magnitude: 5.3
Apparent Magnitude: 12.5
Right Ascension(RA) 172.1220
Declination (DEC) 1.6906
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Benjamin T. Montet, Timothy D. Morton, Daniel Foreman-Mackey, John Asher Johnson, David W. Hogg, Brendan P. Bowler, David W. Latham, Allyson Bieryla, Andrew W. Mann, "
Discovery Paper - Title "STELLAR AND PLANETARY PROPERTIES OF K2 CAMPAIGN 1 CANDIDATES AND VALIDATION OF 18 SYSTEMS, INCLUDING A PLANET RECEIVING EARTH-LIKE INSOLATION "
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=K2-10+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/EPIC%20201577035%20b/
K2-10 b
K2-10 b

  • K2-10 b is an exoplanet orbiting the star K2-10, located about 890.0 light-years (272.9 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star K2-10 has apparent magnitude of 12.5, with absolute magnitude of 5.3.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5620 with its spectral types of F9
  • In this planetary system, the extrasolar planet K2-10 b orbits around the star K2-10 every 19.3 days with its orbital distance of 0.14 AU ( 20491106.5 km)
  • (Projected orbit of K2-10 b around its host star K2-10)


  • The Star K2-10 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.671 AU ( 100312907.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.927 AU ( 138658653.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.412 AU ( 211285102.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.078 AU ( 310915284.4 km)
  • Radiation at Planetary Boundary of K2-10 b : 62621.32 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-10)



  • Kopparapu Recent Venus for Star K2-10 distance : 0.702 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-10 distance : 0.888 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-10 distance : 0.858 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-10 distance : 0.941 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-10 distance : 1.576 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-10 distance : 1.662 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-10)



  • Original Kopparapu Recent Venus for Star K2-10 distance : 0.700 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-10 distance : 0.913 AU
  • Original Kopparapu Moist Greenhouse for Star K2-10 distance : 0.927 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-10 distance : 1.603 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-10 distance : 1.667 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-10)



    (Position in Stellar Map of star K2-10 and its Exoplanet K2-10 b)



    (Zoomed position in Stellar Map of star K2-10 and its Exoplanet K2-10 b (zoom level 3))

    (Synthetic Spectrum of star K2-10*)
    *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