Imaginary Picture of Kepler-771 b
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Exoplanet Name : Kepler-771 b
Alternate Name :
Radius (Rjup / Re): 0.1620 (Rjup) 1.8159 (Rearth)
Mass (Mjup / Me): 0.0145 (Mjup) 4.5947 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0838 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0239
Orbital Period(Observed/Estimated) 8.73 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 234087.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 981.7 (K)
Blackbody T 0.3(K) 921.9 (K)
Blackbody T 0.7(K) 745.9 (K)
Tidally Locked Blackbody T 0.1(K) 1167.5 (K)
Tidally Locked Blackbody T 0.3(K) 1096.4 (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-771
Alternate Name :
Star Distance(LY) : 3261.6
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5906 (K)
Spectral type : G1
Metalicity : 0.0
Absolute Magnitude: 3.6
Apparent Magnitude: 13.6
Right Ascension(RA) 287.4441
Declination (DEC) 38.0884
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
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 657 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-771%20b/
Kepler-771 b
Kepler-771 b

  • Kepler-771 b is an exoplanet orbiting the star Kepler-771, located about 3261.6 light-years (1000.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-771 has apparent magnitude of 13.6, with absolute magnitude of 3.6.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5906 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-771 b orbits around the star Kepler-771 every 8.7 days with its orbital distance of 0.08 AU ( 12540501.8 km)
  • (Projected orbit of Kepler-771 b around its host star Kepler-771)


  • The Star Kepler-771 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.793 AU ( 118695511.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.097 AU ( 164068215.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.671 AU ( 250003652.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.459 AU ( 367891327.1 km)
  • Radiation at Planetary Boundary of Kepler-771 b : 234087.47 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-771)



  • Kopparapu Recent Venus for Star Kepler-771 distance : 0.816 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-771 distance : 1.033 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-771 distance : 0.998 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-771 distance : 1.094 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-771 distance : 1.819 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-771 distance : 1.918 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-771)



  • Original Kopparapu Recent Venus for Star Kepler-771 distance : 0.819 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-771 distance : 1.061 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-771 distance : 1.084 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-771 distance : 1.851 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-771 distance : 1.925 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-771)



    (Position in Stellar Map of star Kepler-771 and its Exoplanet Kepler-771 b)



    (Zoomed position in Stellar Map of star Kepler-771 and its Exoplanet Kepler-771 b (zoom level 3))