Imaginary Picture of Kepler-455 b

Display orbital revolution of Kepler-455 b around the hoststar Kepler 455
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Exoplanet Name : Kepler-455 b
Alternate Name : "2MASS J19394796+3836186 b, WISE J193947.96+383618.7 b , KIC 3558849 b, KOI-4307 b"
Status : Confirmed
Radius (Rjup / Re): 0.6200 (Rjup) 6.9496 (Rearth)
Mass (Mjup / Me): 0.2336 (Mjup) 74.2756 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 2.3419 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 3.6202
Orbital Period(Observed/Estimated) 1322.30 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5379
Star Radiation at Atmospheric Boundary: 683.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 228.2 (K)
Blackbody T 0.3(K) 214.3 (K)
Blackbody T 0.7(K) 173.4 (K)
Tidally Locked Blackbody T 0.1(K) 271.4 (K)
Tidally Locked Blackbody T 0.3(K) 254.9 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler 455
Alternate Name : "KIC 3558849, WISE J193947.96+383618.7, 2MASS J19394796+3836186, KOI-4307"
Star Distance(LY) : 3964.9
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6000 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.4
Absolute Magnitude: 11.6
Apparent Magnitude: 22.0
Right Ascension(RA) 294.9498
Declination (DEC) 38.6052
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Ji Wang, Debra A. Fischer, Thomas Barclay, Alyssa Picard, Bo Ma, Brendan P. Bowler, Joseph R. Schmitt, Tabetha S. Boyajian, Kian J. Jek, Daryll LaCourse, Christoph Baranec, Reed Riddle, Nicholas M. Law, Chris Lintott, Kevin Schawinski, Dean Joseph Simister, Boscher Gregoire, Sean P. Babin, Trevor Poile, Thomas Lee Jacobs, Tony Jebson, Mark R. Omohundro, Hans Martin Schwengeler, Johann Sejpka, Ivan A.Terentev, Robert Gagliano, Jari-Pekka Paakkonen, Hans Kristian Otnes Berge, Troy Winarski, Gerald R. Green, Allan R. Schmitt, Martti H. Kristiansen, Abe Hoekstra"
Discovery Paper - Title Planet Hunters. VIII. Characterization of 41 Long-Period Exoplanet Candidates from Kepler Archival Data
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler+455&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/KIC%203558849%20b/
Kepler-455 b
Kepler-455 b

  • Kepler-455 b is an exoplanet orbiting the star Kepler 455, located about 3964.9 light-years (1215.6 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star Kepler 455 has apparent magnitude of 22.0, with absolute magnitude of 11.6.
  • It is 1.0 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6000 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-455 b orbits around the star Kepler 455 every 1322.3 days with its orbital distance of 2.34 AU ( 350343410.0 km)
  • (Projected orbit of Kepler-455 b around its host star Kepler 455)


  • The Star Kepler 455 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.198 AU ( 179205704.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.656 AU ( 247709115.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.523 AU ( 377453873.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.713 AU ( 555439909.9 km)
  • Radiation at Planetary Boundary of Kepler-455 b : 683.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler 455)



  • Kopparapu Recent Venus for Star Kepler 455 distance : 1.225 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler 455 distance : 1.551 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler 455 distance : 1.498 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler 455 distance : 1.642 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler 455 distance : 2.724 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler 455 distance : 2.873 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler 455)



  • Original Kopparapu Recent Venus for Star Kepler 455 distance : 1.232 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler 455 distance : 1.593 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler 455 distance : 1.630 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler 455 distance : 2.773 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler 455 distance : 2.884 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler 455)



    (Position in Stellar Map of star Kepler 455 and its Exoplanet Kepler-455 b)



    (Zoomed position in Stellar Map of star Kepler 455 and its Exoplanet Kepler-455 b (zoom level 3))

    (Synthetic Spectrum of star Kepler 455*)
    *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