Imaginary Picture of Kepler-475 b

Display orbital revolution of Kepler-475 b around the hoststar Kepler-475
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Exoplanet Name : Kepler-475 b
Alternate Name : "2MASS J19081241+4012415 b, K00161.01, KIC 5084942 b, KOI-161 b, KOI-161.01, WISE J190812.40+401241.2 b"
Radius (Rjup / Re): 0.2220 (Rjup) 2.4884 (Rearth)
Mass (Mjup / Me): 0.0194 (Mjup) 6.1591 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0396 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0085
Orbital Period(Observed/Estimated) 3.11 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9947
Star Radiation at Atmospheric Boundary: 298227.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1043.0 (K)
Blackbody T 0.3(K) 979.5 (K)
Blackbody T 0.7(K) 792.5 (K)
Tidally Locked Blackbody T 0.1(K) 1240.3 (K)
Tidally Locked Blackbody T 0.3(K) 1164.8 (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-475
Alternate Name : "2MASS J19081241+4012415, KIC 5084942, KOI-161, WISE J190812.40+401241.2"
Star Distance(LY) : 913.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 2.7 (GY)
Temperature : 4995 (K)
Spectral type : K2
UV portion[%]: 3.3
Visible portion[%]: 37.2
IR portion[%]: 59.5
Metalicity : 0.2
Absolute Magnitude: 4.6
Apparent Magnitude: 11.8
Right Ascension(RA) 287.0517
Declination (DEC) 40.2115
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 433 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-475%20b/
Kepler-475 b
Kepler-475 b

  • Kepler-475 b is an exoplanet orbiting the star Kepler-475, located about 913.2 light-years (280.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-475 has apparent magnitude of 11.8, with absolute magnitude of 4.6.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4995 with its spectral types of K2
  • In this planetary system, the extrasolar planet Kepler-475 b orbits around the star Kepler-475 every 3.1 days with its orbital distance of 0.04 AU ( 5926339.6 km)
  • (Projected orbit of Kepler-475 b around its host star Kepler-475)


  • The Star Kepler-475 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.423 AU ( 63312703.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.585 AU ( 87514702.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.891 AU ( 133353038.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.312 AU ( 196234838.6 km)
  • Radiation at Planetary Boundary of Kepler-475 b : 298227.76 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-475)



  • Kopparapu Recent Venus for Star Kepler-475 distance : 0.458 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-475 distance : 0.580 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-475 distance : 0.560 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-475 distance : 0.615 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-475 distance : 1.051 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-475 distance : 1.109 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-475)



  • Original Kopparapu Recent Venus for Star Kepler-475 distance : 0.453 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-475 distance : 0.597 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-475 distance : 0.600 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-475 distance : 1.069 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-475 distance : 1.111 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-475)



    (Position in Stellar Map of star Kepler-475 and its Exoplanet Kepler-475 b)



    (Zoomed position in Stellar Map of star Kepler-475 and its Exoplanet Kepler-475 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-475*)
    *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