Imaginary Picture of Kepler-809 b

Display orbital revolution of Kepler-809 b around the hoststar Kepler-809
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Exoplanet Name : Kepler-809 b
Alternate Name : "2MASS J19162007+4801052 b, K01302.01, KIC 10724369 b, KOI-1302 b, KOI-1302.01, WISE J191620.07+480105.0 b"
Status : Confirmed
Radius (Rjup / Re): 0.2690 (Rjup) 3.0152 (Rearth)
Mass (Mjup / Me): 0.0232 (Mjup) 7.3634 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2843 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1523
Orbital Period(Observed/Estimated) 55.64 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.8099
Star Radiation at Atmospheric Boundary: 18703.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 521.9 (K)
Blackbody T 0.3(K) 490.2 (K)
Blackbody T 0.7(K) 396.6 (K)
Tidally Locked Blackbody T 0.1(K) 620.7 (K)
Tidally Locked Blackbody T 0.3(K) 582.9 (K)
Size Class: sub-Neptune-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-809
Alternate Name : "2MASS J19162007+4801052, KIC 10724369, KOI-1302, WISE J191620.07+480105.0"
Star Distance(LY) : 3135.4
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.4 (GY)
Temperature : 5952 (K)
Spectral type : G3
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 3.6
Apparent Magnitude: 13.6
Right Ascension(RA) 289.0836
Declination (DEC) 48.0181
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 682 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-809&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-809%20b/
Kepler-809 b
Kepler-809 b

  • Kepler-809 b is an exoplanet orbiting the star Kepler-809, located about 3135.4 light-years (961.3 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-809 has apparent magnitude of 13.6, with absolute magnitude of 3.6.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5952 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-809 b orbits around the star Kepler-809 every 55.6 days with its orbital distance of 0.28 AU ( 42527022.2 km)
  • (Projected orbit of Kepler-809 b around its host star Kepler-809)


  • The Star Kepler-809 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.761 AU ( 113777821.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.051 AU ( 157270682.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.602 AU ( 239645715.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.357 AU ( 352649169.1 km)
  • Radiation at Planetary Boundary of Kepler-809 b : 18703.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-809)



  • Kopparapu Recent Venus for Star Kepler-809 distance : 0.780 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-809 distance : 0.988 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-809 distance : 0.954 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-809 distance : 1.046 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-809 distance : 1.737 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-809 distance : 1.832 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-809)



  • Original Kopparapu Recent Venus for Star Kepler-809 distance : 0.784 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-809 distance : 1.014 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-809 distance : 1.037 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-809 distance : 1.768 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-809 distance : 1.838 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-809)



    (Position in Stellar Map of star Kepler-809 and its Exoplanet Kepler-809 b)



    (Zoomed position in Stellar Map of star Kepler-809 and its Exoplanet Kepler-809 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-809*)
    *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