Imaginary Picture of Kepler-104 d

Display orbital revolution of Kepler-104 d around the hoststar Kepler-104
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Exoplanet Name : Kepler-104 d
Alternate Name : "2MASS J19102510+4210004 d, K00111.03, KIC 6678383 d, KOI-111 d, KOI-111.03, Kepler-104 A d, WISE J191025.11+420959.7 d
Status : Confirmed
Radius (Rjup / Re): 0.3190 (Rjup) 3.5757 (Rearth)
Mass (Mjup / Me): 0.0271 (Mjup) 8.6285 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2570 (AU) 0.2570 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1417
Orbital Period(Observed/Estimated) 51.76 (Days Obs.) 52.87 (Days Est.)
Surface Gravity (G Earth) 0.6749
Star Radiation at Atmospheric Boundary: 23050.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 549.9 (K)
Blackbody T 0.3(K) 516.4 (K)
Blackbody T 0.7(K) 417.9 (K)
Tidally Locked Blackbody T 0.1(K) 654.0 (K)
Tidally Locked Blackbody T 0.3(K) 614.2 (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-104
Alternate Name : "2MASS J19102510+4210004, KIC 6678383, KOI-111, Kepler-104 A, WISE J191025.11+420959.7"
Star Distance(LY) : 1306.9
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5760 (K)
Spectral type : G4
UV portion[%]: 7.6
Visible portion[%]: 44.5
IR portion[%]: 47.9
Metalicity : -0.8
Absolute Magnitude: 3.5
Apparent Magnitude: 11.6
Right Ascension(RA) 287.6046
Declination (DEC) 42.1668
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-104+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-104%20d/
Kepler-104 d
Kepler-104 d

  • Kepler-104 d is an exoplanet orbiting the star Kepler-104, located about 1306.9 light-years (400.7 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-104 has apparent magnitude of 11.6, with absolute magnitude of 3.5.
  • It is 0.8 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5760 with its spectral types of G4
  • In this planetary system, the extrasolar planet Kepler-104 d orbits around the star Kepler-104 every 51.8 days with its orbital distance of 0.26 AU ( 38446652.8 km)
  • (Projected orbit of Kepler-104 d around its host star Kepler-104)


  • The Star Kepler-104 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.763 AU ( 114189874.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.055 AU ( 157840248.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.608 AU ( 240513608.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.366 AU ( 353926310.6 km)
  • Radiation at Planetary Boundary of Kepler-104 d : 23050.35 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-104)



  • Kopparapu Recent Venus for Star Kepler-104 distance : 0.792 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-104 distance : 1.003 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-104 distance : 0.969 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-104 distance : 1.062 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-104 distance : 1.772 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-104 distance : 1.869 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-104)



  • Original Kopparapu Recent Venus for Star Kepler-104 distance : 0.793 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-104 distance : 1.031 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-104 distance : 1.049 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-104 distance : 1.803 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-104 distance : 1.875 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-104)



    (Position in Stellar Map of star Kepler-104 and its Exoplanet Kepler-104 d)



    (Zoomed position in Stellar Map of star Kepler-104 and its Exoplanet Kepler-104 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-104*)
    *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