Imaginary Picture of Kepler-677 b

Display orbital revolution of Kepler-677 b around the hoststar Kepler-677
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Exoplanet Name : Kepler-677 b
Alternate Name : "2MASS J19202353+5019177 b, K00782.01, KIC 11960862 b, KOI-782 b, KOI-782.01"
Status : Confirmed
Radius (Rjup / Re): 0.4800 (Rjup) 5.3803 (Rearth)
Mass (Mjup / Me): 0.1084 (Mjup) 34.4663 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0687 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0180
Orbital Period(Observed/Estimated) 6.58 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1906
Star Radiation at Atmospheric Boundary: 888537.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1370.3 (K)
Blackbody T 0.3(K) 1286.8 (K)
Blackbody T 0.7(K) 1041.2 (K)
Tidally Locked Blackbody T 0.1(K) 1629.6 (K)
Tidally Locked Blackbody T 0.3(K) 1530.3 (K)
Size Class: sub-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-677
Alternate Name : "2MASS J19202353+5019177, KIC 11960862, KOI-782"
Star Distance(LY) : 6410.8
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.6 (GY)
Temperature : 5991 (K)
Spectral type : G4
UV portion[%]: 7.7
Visible portion[%]: 44.5
IR portion[%]: 47.8
Metalicity : 0.1
Absolute Magnitude: 2.6
Apparent Magnitude: 14.1
Right Ascension(RA) 290.0981
Declination (DEC) 50.3216
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 582 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-677+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-677%20b/
Kepler-677 b
Kepler-677 b

  • Kepler-677 b is an exoplanet orbiting the star Kepler-677, located about 6410.8 light-years (1965.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-677 has apparent magnitude of 14.1, with absolute magnitude of 2.6.
  • It is 1.0 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5991 with its spectral types of G4
  • In this planetary system, the extrasolar planet Kepler-677 b orbits around the star Kepler-677 every 6.6 days with its orbital distance of 0.07 AU ( 10275659.8 km)
  • (Projected orbit of Kepler-677 b around its host star Kepler-677)


  • The Star Kepler-677 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.267 AU ( 189486308.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.751 AU ( 261919597.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.668 AU ( 399107504.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.926 AU ( 587304175.9 km)
  • Radiation at Planetary Boundary of Kepler-677 b : 888537.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-677)



  • Kopparapu Recent Venus for Star Kepler-677 distance : 1.296 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-677 distance : 1.641 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-677 distance : 1.585 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-677 distance : 1.737 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-677 distance : 2.883 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-677 distance : 3.041 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-677)



  • Original Kopparapu Recent Venus for Star Kepler-677 distance : 1.303 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-677 distance : 1.685 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-677 distance : 1.725 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-677 distance : 2.934 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-677 distance : 3.051 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-677)



    (Position in Stellar Map of star Kepler-677 and its Exoplanet Kepler-677 b)



    (Zoomed position in Stellar Map of star Kepler-677 and its Exoplanet Kepler-677 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-677*)
    *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