Imaginary Picture of Kepler-808 b

Display orbital revolution of Kepler-808 b around the hoststar Kepler-808
/
Exoplanet Name : Kepler-808 b
Alternate Name : "2MASS J19262258+4826442 b, K01300.01, KIC 10975146 b, KOI-1300 b, KOI-1300.01, WISE J192622.58+482644.0 b"
Status : Confirmed
Radius (Rjup / Re): 0.1300 (Rjup) 1.4572 (Rearth)
Mass (Mjup / Me): 0.0120 (Mjup) 3.8269 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0131 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0017
Orbital Period(Observed/Estimated) 0.63 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.8023
Star Radiation at Atmospheric Boundary: 775616.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1324.5 (K)
Blackbody T 0.3(K) 1243.9 (K)
Blackbody T 0.7(K) 1006.4 (K)
Tidally Locked Blackbody T 0.1(K) 1575.1 (K)
Tidally Locked Blackbody T 0.3(K) 1479.2 (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-808
Alternate Name : "2MASS J19262258+4826442, KIC 10975146, KOI-1300, WISE J192622.58+482644.0"
Star Distance(LY) : 688.8
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 1.9 (GY)
Temperature : 4441 (K)
Spectral type : K4
UV portion[%]: 1.4
Visible portion[%]: 30.1
IR portion[%]: 68.5
Metalicity : 0.1
Absolute Magnitude: 5.9
Apparent Magnitude: 12.6
Right Ascension(RA) 291.5941
Declination (DEC) 48.4456
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 681 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-808&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-808%20b/
Kepler-808 b
Kepler-808 b

  • Kepler-808 b is an exoplanet orbiting the star Kepler-808, located about 688.8 light-years (211.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-808 has apparent magnitude of 12.6, with absolute magnitude of 5.9.
  • It is 0.8 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 4441 with its spectral types of K4
  • In this planetary system, the extrasolar planet Kepler-808 b orbits around the star Kepler-808 every 0.6 days with its orbital distance of 0.01 AU ( 1966264.0 km)
  • (Projected orbit of Kepler-808 b around its host star Kepler-808)


  • The Star Kepler-808 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.226 AU ( 33876265.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.313 AU ( 46825851.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.477 AU ( 71352235.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.702 AU ( 104997940.7 km)
  • Radiation at Planetary Boundary of Kepler-808 b : 775616.11 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-808)



  • Kopparapu Recent Venus for Star Kepler-808 distance : 0.251 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-808 distance : 0.317 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-808 distance : 0.306 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-808 distance : 0.337 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-808 distance : 0.589 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-808 distance : 0.622 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-808)



  • Original Kopparapu Recent Venus for Star Kepler-808 distance : 0.247 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-808 distance : 0.328 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-808 distance : 0.327 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-808 distance : 0.599 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-808 distance : 0.623 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-808)



    (Position in Stellar Map of star Kepler-808 and its Exoplanet Kepler-808 b)



    (Zoomed position in Stellar Map of star Kepler-808 and its Exoplanet Kepler-808 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-808*)
    *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