Imaginary Picture of Kepler-656 b

Display orbital revolution of Kepler-656 b around the hoststar Kepler-656
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Exoplanet Name : Kepler-656 b
Alternate Name : "2MASS J19131869+4722537 b, K00732.01, KIC 10265898 b, KOI-732 b, KOI-732.01, WISE J191318.69+472253.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.2780 (Rjup) 3.1161 (Rearth)
Mass (Mjup / Me): 0.0239 (Mjup) 7.5923 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0217 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0035
Orbital Period(Observed/Estimated) 1.26 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7819
Star Radiation at Atmospheric Boundary: 1442104.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1546.6 (K)
Blackbody T 0.3(K) 1452.5 (K)
Blackbody T 0.7(K) 1175.2 (K)
Tidally Locked Blackbody T 0.1(K) 1839.3 (K)
Tidally Locked Blackbody T 0.3(K) 1727.3 (K)
Size Class: Neptune-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-656
Alternate Name : "2MASS J19131869+4722537, KIC 10265898, KOI-732, WISE J191318.69+472253.5"
Star Distance(LY) : 2904.9
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.4 (GY)
Temperature : 5251 (K)
Spectral type : K0
UV portion[%]: 5.4
Visible portion[%]: 40.8
IR portion[%]: 53.7
Metalicity : -0.0
Absolute Magnitude: 4.3
Apparent Magnitude: 14.1
Right Ascension(RA) 288.3279
Declination (DEC) 47.3816
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 563 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-656+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-656%20b/
Kepler-656 b
Kepler-656 b

  • Kepler-656 b is an exoplanet orbiting the star Kepler-656, located about 2904.9 light-years (890.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-656 has apparent magnitude of 14.1, with absolute magnitude of 4.3.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5251 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-656 b orbits around the star Kepler-656 every 1.3 days with its orbital distance of 0.02 AU ( 3248413.5 km)
  • (Projected orbit of Kepler-656 b around its host star Kepler-656)


  • The Star Kepler-656 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.510 AU ( 76313262.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.705 AU ( 105484871.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.074 AU ( 160735600.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.581 AU ( 236529477.6 km)
  • Radiation at Planetary Boundary of Kepler-656 b : 1442104.85 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-656)



  • Kopparapu Recent Venus for Star Kepler-656 distance : 0.545 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-656 distance : 0.690 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-656 distance : 0.666 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-656 distance : 0.731 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-656 distance : 1.239 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-656 distance : 1.306 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-656)



  • Original Kopparapu Recent Venus for Star Kepler-656 distance : 0.541 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-656 distance : 0.710 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-656 distance : 0.715 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-656 distance : 1.260 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-656 distance : 1.310 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-656)



    (Position in Stellar Map of star Kepler-656 and its Exoplanet Kepler-656 b)



    (Zoomed position in Stellar Map of star Kepler-656 and its Exoplanet Kepler-656 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-656*)
    *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