Imaginary Picture of Kepler-473 b

Display orbital revolution of Kepler-473 b around the hoststar Kepler-473
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Exoplanet Name : Kepler-473 b
Alternate Name : "2MASS J19063122+3856441 b, K00149.01, KIC 3835670 b, KOI-149 b, KOI-149.01, WISE J190631.22+385644.1 b"
Status : Confirmed
Radius (Rjup / Re): 0.3640 (Rjup) 4.0801 (Rearth)
Mass (Mjup / Me): 0.0307 (Mjup) 9.7552 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1190 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0399
Orbital Period(Observed/Estimated) 14.56 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.5860
Star Radiation at Atmospheric Boundary: 330293.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1070.0 (K)
Blackbody T 0.3(K) 1004.8 (K)
Blackbody T 0.7(K) 813.0 (K)
Tidally Locked Blackbody T 0.1(K) 1272.4 (K)
Tidally Locked Blackbody T 0.3(K) 1194.9 (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-473
Alternate Name : "2MASS J19063122+3856441, KIC 3835670, KOI-149, WISE J190631.22+385644.1"
Star Distance(LY) : 2953.2
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 6.9 (GY)
Temperature : 5708 (K)
Spectral type : G2
UV portion[%]: 7.6
Visible portion[%]: 44.4
IR portion[%]: 47.9
Metalicity : 0.1
Absolute Magnitude: 2.3
Apparent Magnitude: 12.1
Right Ascension(RA) 286.6301
Declination (DEC) 38.9456
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 431 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-473+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-473%20b/
Kepler-473 b
Kepler-473 b

  • Kepler-473 b is an exoplanet orbiting the star Kepler-473, located about 2953.2 light-years (905.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-473 has apparent magnitude of 12.1, with absolute magnitude of 2.3.
  • It is 1.1 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5708 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-473 b orbits around the star Kepler-473 every 14.6 days with its orbital distance of 0.12 AU ( 17797326.9 km)
  • (Projected orbit of Kepler-473 b around its host star Kepler-473)


  • The Star Kepler-473 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.338 AU ( 200094548.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.849 AU ( 276582956.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.817 AU ( 421451217.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.146 AU ( 620183929.6 km)
  • Radiation at Planetary Boundary of Kepler-473 b : 330293.76 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-473)



  • Kopparapu Recent Venus for Star Kepler-473 distance : 1.392 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-473 distance : 1.763 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-473 distance : 1.703 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-473 distance : 1.867 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-473 distance : 3.119 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-473 distance : 3.290 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-473)



  • Original Kopparapu Recent Venus for Star Kepler-473 distance : 1.392 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-473 distance : 1.812 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-473 distance : 1.842 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-473 distance : 3.174 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-473 distance : 3.300 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-473)



    (Position in Stellar Map of star Kepler-473 and its Exoplanet Kepler-473 b)



    (Zoomed position in Stellar Map of star Kepler-473 and its Exoplanet Kepler-473 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-473*)
    *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