Imaginary Picture of Kepler-85 d

Display orbital revolution of Kepler-85 d around the hoststar Kepler-85
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Exoplanet Name : Kepler-85 d
Alternate Name : "2MASS J19235362+4517251 d, K02038.03, KIC 8950568 d, KOI-2038 d, KOI-2038.03, WISE J192353.62+451725.0 d"
Status : Confirmed
Radius (Rjup / Re): 0.1070 (Rjup) 1.1994 (Rearth)
Mass (Mjup / Me): 0.0059 (Mjup) 1.8826 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1300 (AU) 0.1300 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0490
Orbital Period(Observed/Estimated) 17.91 (Days Obs.) 17.56 (Days Est.)
Surface Gravity (G Earth) 1.3088
Star Radiation at Atmospheric Boundary: 50759.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 669.9 (K)
Blackbody T 0.3(K) 629.1 (K)
Blackbody T 0.7(K) 509.0 (K)
Tidally Locked Blackbody T 0.1(K) 796.7 (K)
Tidally Locked Blackbody T 0.3(K) 748.2 (K)
Size Class: Earth-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-85
Alternate Name : "2MASS J19235362+4517251, KIC 8950568, KOI-2038, WISE J192353.62+451725.0"
Star Distance(LY) : 2494.8
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5520 (K)
Spectral type : G7
UV portion[%]: 7.0
Visible portion[%]: 43.4
IR portion[%]: 49.7
Metalicity : 0.0
Absolute Magnitude: 5.6
Apparent Magnitude: 15.0
Right Ascension(RA) 290.9734
Declination (DEC) 45.2903
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-85&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-85%20d/
Kepler-85 d
Kepler-85 d

  • Kepler-85 d is an exoplanet orbiting the star Kepler-85, located about 2494.8 light-years (764.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-85 has apparent magnitude of 15.0, with absolute magnitude of 5.6.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5520 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-85 d orbits around the star Kepler-85 every 17.9 days with its orbital distance of 0.13 AU ( 19447723.2 km)
  • (Projected orbit of Kepler-85 d around its host star Kepler-85)


  • The Star Kepler-85 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.573 AU ( 85714834.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.792 AU ( 118480301.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.207 AU ( 180537760.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.776 AU ( 265669223.2 km)
  • Radiation at Planetary Boundary of Kepler-85 d : 50759.09 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-85)



  • Kopparapu Recent Venus for Star Kepler-85 distance : 0.603 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-85 distance : 0.764 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-85 distance : 0.737 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-85 distance : 0.809 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-85 distance : 1.358 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-85 distance : 1.433 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-85)



  • Original Kopparapu Recent Venus for Star Kepler-85 distance : 0.601 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-85 distance : 0.785 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-85 distance : 0.795 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-85 distance : 1.382 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-85 distance : 1.437 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-85)



    (Position in Stellar Map of star Kepler-85 and its Exoplanet Kepler-85 d)



    (Zoomed position in Stellar Map of star Kepler-85 and its Exoplanet Kepler-85 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-85*)
    *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