Imaginary Picture of Kepler-304 e

Display orbital revolution of Kepler-304 e around the hoststar Kepler-304
/
Exoplanet Name : Kepler-304 e
Alternate Name : "2MASS J19374602+4033273 e, K01557.04, KIC 5371776 e, KOI-1557 e, KOI-1557.04, WISE J193746.01+403327.4 e"
Radius (Rjup / Re): 0.1070 (Rjup) 1.1994 (Rearth)
Mass (Mjup / Me): 0.0059 (Mjup) 1.8826 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0238 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0041
Orbital Period(Observed/Estimated) 1.50 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3088
Star Radiation at Atmospheric Boundary: 515761.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1196.1 (K)
Blackbody T 0.3(K) 1123.2 (K)
Blackbody T 0.7(K) 908.8 (K)
Tidally Locked Blackbody T 0.1(K) 1422.4 (K)
Tidally Locked Blackbody T 0.3(K) 1335.8 (K)
Size Class: 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-304
Alternate Name : "2MASS J19374602+4033273, KIC 5371776, KOI-1557, WISE J193746.01+403327.4"
Star Distance(LY) : 1417.5
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4843 (K)
Spectral type : K3
UV portion[%]: 2.3
Visible portion[%]: 34.6
IR portion[%]: 63.1
Metalicity : 0.5
Absolute Magnitude: 5.1
Apparent Magnitude: 13.2
Right Ascension(RA) 294.4418
Declination (DEC) 40.5576
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-304+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-304%20e/
Kepler-304 e
Kepler-304 e

  • Kepler-304 e is an exoplanet orbiting the star Kepler-304, located about 1417.5 light-years (434.6 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-304 has apparent magnitude of 13.2, with absolute magnitude of 5.1.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4843 with its spectral types of K3
  • In this planetary system, the extrasolar planet Kepler-304 e orbits around the star Kepler-304 every 1.5 days with its orbital distance of 0.02 AU ( 3560066.1 km)
  • (Projected orbit of Kepler-304 e around its host star Kepler-304)


  • The Star Kepler-304 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.334 AU ( 50016459.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.462 AU ( 69135817.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.704 AU ( 105347686.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.036 AU ( 155023735.3 km)
  • Radiation at Planetary Boundary of Kepler-304 e : 515761.80 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-304)



  • Kopparapu Recent Venus for Star Kepler-304 distance : 0.364 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-304 distance : 0.461 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-304 distance : 0.445 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-304 distance : 0.489 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-304 distance : 0.841 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-304 distance : 0.887 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-304)



  • Original Kopparapu Recent Venus for Star Kepler-304 distance : 0.360 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-304 distance : 0.476 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-304 distance : 0.476 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-304 distance : 0.855 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-304 distance : 0.890 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-304)



    (Position in Stellar Map of star Kepler-304 and its Exoplanet Kepler-304 e)



    (Zoomed position in Stellar Map of star Kepler-304 and its Exoplanet Kepler-304 e (zoom level 3))

    (Synthetic Spectrum of star Kepler-304*)
    *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