Imaginary Picture of Kepler-655 b

Display orbital revolution of Kepler-655 b around the hoststar Kepler-655
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Exoplanet Name : Kepler-655 b
Alternate Name : "2MASS J19490218+4650354 b, K00722.01, KIC 9965439 b, KOI-722 b, KOI-722.01, WISE J194902.17+465035.4 b"
Status : Confirmed
Radius (Rjup / Re): 0.2420 (Rjup) 2.7126 (Rearth)
Mass (Mjup / Me): 0.0210 (Mjup) 6.6736 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2648 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1271
Orbital Period(Observed/Estimated) 46.41 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9070
Star Radiation at Atmospheric Boundary: 36697.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 617.7 (K)
Blackbody T 0.3(K) 580.1 (K)
Blackbody T 0.7(K) 469.4 (K)
Tidally Locked Blackbody T 0.1(K) 734.6 (K)
Tidally Locked Blackbody T 0.3(K) 689.9 (K)
Size Class: sub-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-655
Alternate Name : "2MASS J19490218+4650354, KIC 9965439, KOI-722, WISE J194902.17+465035.4"
Star Distance(LY) : 2453.2
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.4 (GY)
Temperature : 6145 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 3.1
Apparent Magnitude: 12.5
Right Ascension(RA) 297.2591
Declination (DEC) 46.8432
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 562 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-655+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-655%20b/
Kepler-655 b
Kepler-655 b

  • Kepler-655 b is an exoplanet orbiting the star Kepler-655, located about 2453.2 light-years (752.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-655 has apparent magnitude of 12.5, with absolute magnitude of 3.1.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6145 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-655 b orbits around the star Kepler-655 every 46.4 days with its orbital distance of 0.26 AU ( 39611023.2 km)
  • (Projected orbit of Kepler-655 b around its host star Kepler-655)


  • The Star Kepler-655 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.992 AU ( 148444013.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.372 AU ( 205188419.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.090 AU ( 312661743.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.076 AU ( 460095452.3 km)
  • Radiation at Planetary Boundary of Kepler-655 b : 36697.18 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-655)



  • Kopparapu Recent Venus for Star Kepler-655 distance : 1.006 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-655 distance : 1.274 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-655 distance : 1.230 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-655 distance : 1.348 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-655 distance : 2.230 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-655 distance : 2.352 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-655)



  • Original Kopparapu Recent Venus for Star Kepler-655 distance : 1.015 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-655 distance : 1.307 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-655 distance : 1.343 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-655 distance : 2.270 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-655 distance : 2.360 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-655)



    (Position in Stellar Map of star Kepler-655 and its Exoplanet Kepler-655 b)



    (Zoomed position in Stellar Map of star Kepler-655 and its Exoplanet Kepler-655 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-655*)
    *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