Imaginary Picture of Kepler-678 b
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Exoplanet Name : Kepler-678 b
Alternate Name :
Radius (Rjup / Re): 0.4590 (Rjup) 5.1449 (Rearth)
Mass (Mjup / Me): 0.0948 (Mjup) 30.1376 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0720 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0199
Orbital Period(Observed/Estimated) 7.28 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 795382.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1332.9 (K)
Blackbody T 0.3(K) 1251.7 (K)
Blackbody T 0.7(K) 1012.8 (K)
Tidally Locked Blackbody T 0.1(K) 1585.1 (K)
Tidally Locked Blackbody T 0.3(K) 1488.5 (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-678
Alternate Name :
Star Distance(LY) : 5973.2
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5489 (K)
Spectral type : G7
Metalicity : 0.1
Absolute Magnitude: 2.4
Apparent Magnitude: 13.7
Right Ascension(RA) 295.4553
Declination (DEC) 50.4946
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 583 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-678%20b/
Kepler-678 b
Kepler-678 b

  • Kepler-678 b is an exoplanet orbiting the star Kepler-678, located about 5973.2 light-years (1831.4 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-678 has apparent magnitude of 13.7, with absolute magnitude of 2.4.
  • It is 0.9 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5489 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-678 b orbits around the star Kepler-678 every 7.3 days with its orbital distance of 0.07 AU ( 10767908.6 km)
  • (Projected orbit of Kepler-678 b around its host star Kepler-678)


  • The Star Kepler-678 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.256 AU ( 187866628.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.736 AU ( 259680776.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.645 AU ( 395696035.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.892 AU ( 582284050.7 km)
  • Radiation at Planetary Boundary of Kepler-678 b : 795382.39 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-678)



  • Kopparapu Recent Venus for Star Kepler-678 distance : 1.324 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-678 distance : 1.676 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-678 distance : 1.619 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-678 distance : 1.776 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-678 distance : 2.985 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-678 distance : 3.149 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-678)



  • Original Kopparapu Recent Venus for Star Kepler-678 distance : 1.319 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-678 distance : 1.724 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-678 distance : 1.745 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-678 distance : 3.037 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-678 distance : 3.158 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-678)



    (Position in Stellar Map of star Kepler-678 and its Exoplanet Kepler-678 b)



    (Zoomed position in Stellar Map of star Kepler-678 and its Exoplanet Kepler-678 b (zoom level 3))