Imaginary Picture of Kepler-908 b

Display orbital revolution of Kepler-908 b around the hoststar Kepler-908
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Exoplanet Name : Kepler-908 b
Alternate Name : "2MASS J19411740+3922353 b, K01615.01, KIC 4278221 b, KOI-1615 b, KOI-1615.01, Kepler-908 A b, WISE J194117.40+392235.2
Status : Confirmed
Radius (Rjup / Re): 0.1090 (Rjup) 1.2218 (Rearth)
Mass (Mjup / Me): 0.0063 (Mjup) 2.0133 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0246 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0037
Orbital Period(Observed/Estimated) 1.34 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3487
Star Radiation at Atmospheric Boundary: 4534454.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2059.6 (K)
Blackbody T 0.3(K) 1934.1 (K)
Blackbody T 0.7(K) 1564.9 (K)
Tidally Locked Blackbody T 0.1(K) 2449.2 (K)
Tidally Locked Blackbody T 0.3(K) 2300.1 (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-908
Alternate Name : "2MASS J19411740+3922353, KIC 4278221, KOI-1615, Kepler-908 A, WISE J194117.40+392235.2"
Star Distance(LY) : 948.4
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 6053 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 3.1
Apparent Magnitude: 10.4
Right Ascension(RA) 295.3225
Declination (DEC) 39.3765
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 741 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-908&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-908%20b/
Kepler-908 b
Kepler-908 b

  • Kepler-908 b is an exoplanet orbiting the star Kepler-908, located about 948.4 light-years (290.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-908 has apparent magnitude of 10.4, with absolute magnitude of 3.1.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6053 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-908 b orbits around the star Kepler-908 every 1.3 days with its orbital distance of 0.02 AU ( 3685574.4 km)
  • (Projected orbit of Kepler-908 b around its host star Kepler-908)


  • The Star Kepler-908 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.026 AU ( 153531674.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.419 AU ( 212220896.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.162 AU ( 323377681.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.181 AU ( 475864424.2 km)
  • Radiation at Planetary Boundary of Kepler-908 b : 4534454.09 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-908)



  • Kopparapu Recent Venus for Star Kepler-908 distance : 1.046 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-908 distance : 1.325 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-908 distance : 1.279 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-908 distance : 1.402 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-908 distance : 2.324 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-908 distance : 2.451 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-908)



  • Original Kopparapu Recent Venus for Star Kepler-908 distance : 1.053 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-908 distance : 1.360 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-908 distance : 1.394 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-908 distance : 2.365 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-908 distance : 2.460 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-908)



    (Position in Stellar Map of star Kepler-908 and its Exoplanet Kepler-908 b)



    (Zoomed position in Stellar Map of star Kepler-908 and its Exoplanet Kepler-908 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-908*)
    *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