Imaginary Picture of Kepler-91 b
/
Exoplanet Name : Kepler-91 b
Alternate Name :
Radius (Rjup / Re): 1.3840 (Rjup) 15.5133 (Rearth)
Mass (Mjup / Me): 0.7300 (Mjup) 232.0947 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0720 (AU) 0.0720 (AU Est.)
Eccentricity : 0.0660
Orbital Period(Yrs) 0.0171
Orbital Period(Observed/Estimated) 6.25 (Days Obs.) 6.17 (Days Est.)
Star Radiation at Atmospheric Boundary: 4335549.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2036.6 (K)
Blackbody T 0.3(K) 1912.6 (K)
Blackbody T 0.7(K) 1547.5 (K)
Tidally Locked Blackbody T 0.1(K) 2421.9 (K)
Tidally Locked Blackbody T 0.3(K) 2274.4 (K)
Size Class: Super-Jupiter-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-91
Alternate Name :
Star Distance(LY) : 4227.6
Stellar Radius(Rsun) : 6.4 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 4.9 (GY)
Temperature : 4605 (K)
Spectral type : K4
Metalicity : 0.1
Absolute Magnitude: 2.3
Apparent Magnitude: 12.9
Right Ascension(RA) 285.6708
Declination (DEC) 44.1167
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "J. Lillo-Box, D. Barrado, A. Moya, B. Montesinos, J. Montalb_n, A. Bayo, M. Barbieri, C. R_gulo, L. Mancini, H. Bouy, T. Henning"
Discovery Paper - Title Kepler-91b: a planet at the end of its life. Planet and giant host star properties via light-curve variations
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-91+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-91%20b/
Kepler-91 b
Kepler-91 b

  • Kepler-91 b is an exoplanet orbiting the star Kepler-91, located about 4227.6 light-years (1296.2 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star Kepler-91 has apparent magnitude of 12.9, with absolute magnitude of 2.3.
  • It is 1.3 times more massive and 6.4 times bigger compared with our Sun. The surface temperature is 4605 with its spectral types of K4
  • In this planetary system, the extrasolar planet Kepler-91 b orbits around the star Kepler-91 every 6.2 days with its orbital distance of 0.07 AU ( 10771046.7 km)
  • (Projected orbit of Kepler-91 b around its host star Kepler-91)


  • The Star Kepler-91 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.933 AU ( 438743060.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.054 AU ( 606457566.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 6.177 AU ( 924107122.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 9.090 AU ( 1359864112.6 km)
  • Radiation at Planetary Boundary of Kepler-91 b : 4335549.14 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-91)



  • Kopparapu Recent Venus for Star Kepler-91 distance : 3.227 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-91 distance : 4.085 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-91 distance : 3.946 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-91 distance : 4.333 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-91 distance : 7.530 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-91 distance : 7.943 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-91)



  • Original Kopparapu Recent Venus for Star Kepler-91 distance : 3.185 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-91 distance : 4.216 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-91 distance : 4.214 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-91 distance : 7.654 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-91 distance : 7.960 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-91)



    (Position in Stellar Map of star Kepler-91 and its Exoplanet Kepler-91 b)



    (Zoomed position in Stellar Map of star Kepler-91 and its Exoplanet Kepler-91 b (zoom level 3))