Imaginary Picture of Kepler-851 b

Display orbital revolution of Kepler-851 b around the hoststar Kepler-851
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Exoplanet Name : Kepler-851 b
Alternate Name : "2MASS J19384326+4908245 b, K01441.01, KIC 11356260 b, KOI-1441 b, KOI-1441.01, WISE J193843.25+490824.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.1500 (Rjup) 1.6813 (Rearth)
Mass (Mjup / Me): 0.0135 (Mjup) 4.2774 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0784 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0233
Orbital Period(Observed/Estimated) 8.51 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5131
Star Radiation at Atmospheric Boundary: 148357.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 875.9 (K)
Blackbody T 0.3(K) 822.6 (K)
Blackbody T 0.7(K) 665.6 (K)
Tidally Locked Blackbody T 0.1(K) 1041.7 (K)
Tidally Locked Blackbody T 0.3(K) 978.2 (K)
Size Class: super-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-851
Alternate Name : "2MASS J19384326+4908245, KIC 11356260, KOI-1441, WISE J193843.25+490824.5"
Star Distance(LY) : 2737.3
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.5 (GY)
Temperature : 5822 (K)
Spectral type : G7
UV portion[%]: 6.7
Visible portion[%]: 42.9
IR portion[%]: 50.4
Metalicity : -0.1
Absolute Magnitude: 4.3
Apparent Magnitude: 13.9
Right Ascension(RA) 294.6803
Declination (DEC) 49.1402
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 713 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-851&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-851%20b/
Kepler-851 b
Kepler-851 b

  • Kepler-851 b is an exoplanet orbiting the star Kepler-851, located about 2737.3 light-years (839.3 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-851 has apparent magnitude of 13.9, with absolute magnitude of 4.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5822 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-851 b orbits around the star Kepler-851 every 8.5 days with its orbital distance of 0.08 AU ( 11735801.9 km)
  • (Projected orbit of Kepler-851 b around its host star Kepler-851)


  • The Star Kepler-851 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.591 AU ( 88429749.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.817 AU ( 122233023.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.245 AU ( 186256077.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.832 AU ( 274083977.3 km)
  • Radiation at Planetary Boundary of Kepler-851 b : 148357.89 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-851)



  • Kopparapu Recent Venus for Star Kepler-851 distance : 0.611 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-851 distance : 0.774 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-851 distance : 0.747 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-851 distance : 0.819 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-851 distance : 1.365 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-851 distance : 1.440 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-851)



  • Original Kopparapu Recent Venus for Star Kepler-851 distance : 0.612 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-851 distance : 0.795 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-851 distance : 0.810 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-851 distance : 1.389 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-851 distance : 1.444 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-851)



    (Position in Stellar Map of star Kepler-851 and its Exoplanet Kepler-851 b)



    (Zoomed position in Stellar Map of star Kepler-851 and its Exoplanet Kepler-851 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-851*)
    *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