Imaginary Picture of Kepler-102 b

Display orbital revolution of Kepler-102 b around the hoststar Kepler-102
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Exoplanet Name : Kepler-102 b
Alternate Name : "KOI-82.05, 2MASS J18455585+4712289 b, K00082.05, KIC 10187017 b, KOI-82 b, WISE J184555.80+471228.4 b"
Radius (Rjup / Re): 0.0420 (Rjup) 0.4708 (Rearth)
Mass (Mjup / Me): 0.0135 (Mjup) 4.3017 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0550 (AU) 0.0550 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0145
Orbital Period(Observed/Estimated) 5.29 (Days Obs.) 5.23 (Days Est.)
Surface Gravity (G Earth) 19.4092
Star Radiation at Atmospheric Boundary: 124086.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 837.7 (K)
Blackbody T 0.3(K) 786.7 (K)
Blackbody T 0.7(K) 636.5 (K)
Tidally Locked Blackbody T 0.1(K) 996.2 (K)
Tidally Locked Blackbody T 0.3(K) 935.5 (K)
Size Class: Mercury-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-102
Alternate Name : "KOI-82, KIC 10187017, 2MASS J18455585+4712289, WISE J184555.80+471228.4"
Star Distance(LY) : 339.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 1.4 (GY)
Temperature : 4909 (K)
Spectral type : K2
UV portion[%]: 2.8
Visible portion[%]: 36.2
IR portion[%]: 61.0
Metalicity : 0.2
Absolute Magnitude: 6.4
Apparent Magnitude: 11.5
Right Ascension(RA) 281.4827
Declination (DEC) 47.2080
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Geoffrey W. Marcy, Howard Isaacson, Andrew W. Howard et al. The Astrophysical Journal, Supplement Series 210:20(70pp) 2014 February, doi:10.1088/0067-0049/210/2/20"
Discovery Paper - Title "Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-102+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-102%20b/
Kepler-102 b
Kepler-102 b

  • Kepler-102 b is an exoplanet orbiting the star Kepler-102, located about 339.0 light-years (104.0 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-102 has apparent magnitude of 11.5, with absolute magnitude of 6.4.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4909 with its spectral types of K2
  • In this planetary system, the extrasolar planet Kepler-102 b orbits around the star Kepler-102 every 5.3 days with its orbital distance of 0.06 AU ( 8227882.9 km)
  • (Projected orbit of Kepler-102 b around its host star Kepler-102)


  • The Star Kepler-102 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.379 AU ( 56699704.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.524 AU ( 78373809.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.798 AU ( 119424341.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.175 AU ( 175738150.0 km)
  • Radiation at Planetary Boundary of Kepler-102 b : 124086.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-102)



  • Kopparapu Recent Venus for Star Kepler-102 distance : 0.412 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-102 distance : 0.521 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-102 distance : 0.504 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-102 distance : 0.553 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-102 distance : 0.948 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-102 distance : 1.000 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-102)



  • Original Kopparapu Recent Venus for Star Kepler-102 distance : 0.407 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-102 distance : 0.537 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-102 distance : 0.539 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-102 distance : 0.964 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-102 distance : 1.003 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-102)



    (Position in Stellar Map of star Kepler-102 and its Exoplanet Kepler-102 b)



    (Zoomed position in Stellar Map of star Kepler-102 and its Exoplanet Kepler-102 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-102*)
    *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