Imaginary Picture of Kepler-504 b

Display orbital revolution of Kepler-504 b around the hoststar Kepler-504
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Exoplanet Name : Kepler-504 b
Alternate Name : "Kepler-504 b, 2MASS J18594123+4558206 b, K00249.01, KIC 9390653 b, KOI-249 b, KOI-249.01, Kepler-504 A b"
Status : Confirmed
Radius (Rjup / Re): 0.1420 (Rjup) 1.5917 (Rearth)
Mass (Mjup / Me): 0.0128 (Mjup) 4.0648 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0609 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0261
Orbital Period(Observed/Estimated) 9.55 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.6045
Star Radiation at Atmospheric Boundary: 9219.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 437.3 (K)
Blackbody T 0.3(K) 410.7 (K)
Blackbody T 0.7(K) 332.3 (K)
Tidally Locked Blackbody T 0.1(K) 520.1 (K)
Tidally Locked Blackbody T 0.3(K) 488.4 (K)
Size Class: super-Earth-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-504
Alternate Name : "Kepler-504, 2MASS J18594123+4558206, KIC 9390653, KOI-249, Kepler-504 A"
Star Distance(LY) : 323.1
Stellar Radius(Rsun) : 0.4 (Rsun Measured)
Stellar Mass(Msun) : 0.3 (Msun Measured) 0.3 (Msun Estimated)
Star Age : 4.2 (GY)
Temperature : 3562 (K)
Spectral type : M4
UV portion[%]: 0.3
Visible portion[%]: 14.9
IR portion[%]: 84.7
Metalicity : -0.3
Absolute Magnitude: 7.0
Apparent Magnitude: 12.0
Right Ascension(RA) 284.9218
Declination (DEC) 45.9724
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 437 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-504%20b/
Kepler-504 b
Kepler-504 b

  • Kepler-504 b is an exoplanet orbiting the star Kepler-504, located about 323.1 light-years (99.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-504 has apparent magnitude of 12.0, with absolute magnitude of 7.0.
  • It is 0.3 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3562 with its spectral types of M4
  • In this planetary system, the extrasolar planet Kepler-504 b orbits around the star Kepler-504 every 9.5 days with its orbital distance of 0.06 AU ( 9106472.7 km)
  • (Projected orbit of Kepler-504 b around its host star Kepler-504)


  • The Star Kepler-504 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.114 AU ( 17105637.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.158 AU ( 23644461.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.241 AU ( 36028927.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.354 AU ( 53018144.7 km)
  • Radiation at Planetary Boundary of Kepler-504 b : 9219.72 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-504)



  • Kopparapu Recent Venus for Star Kepler-504 distance : 0.129 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-504 distance : 0.163 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-504 distance : 0.158 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-504 distance : 0.174 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-504 distance : 0.317 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-504 distance : 0.334 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-504)



  • Original Kopparapu Recent Venus for Star Kepler-504 distance : 0.128 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-504 distance : 0.169 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-504 distance : 0.169 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-504 distance : 0.322 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-504 distance : 0.335 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-504)



    (Position in Stellar Map of star Kepler-504 and its Exoplanet Kepler-504 b)



    (Zoomed position in Stellar Map of star Kepler-504 and its Exoplanet Kepler-504 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-504*)
    *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