Imaginary Picture of Kepler-424 b
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Exoplanet Name : Kepler-424 b
Alternate Name :
Radius (Rjup / Re): 0.8900 (Rjup) 9.9760 (Rearth)
Mass (Mjup / Me): 1.0300 (Mjup) 327.4761 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0440 (AU) 0.0440 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0091
Orbital Period(Observed/Estimated) 3.31 (Days Obs.) 3.35 (Days Est.)
Star Radiation at Atmospheric Boundary: 634325.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1259.6 (K)
Blackbody T 0.3(K) 1182.9 (K)
Blackbody T 0.7(K) 957.1 (K)
Tidally Locked Blackbody T 0.1(K) 1497.9 (K)
Tidally Locked Blackbody T 0.3(K) 1406.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-424
Alternate Name :
Star Distance(LY) : 2277.8
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5482 (K)
Spectral type : G7
Metalicity : 0.4
Absolute Magnitude: 5.3
Apparent Magnitude: 14.5
Right Ascension(RA) 298.6250
Declination (DEC) 48.5775
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Michael Endl, Douglas A. Caldwell, Thomas Barclay, Daniel Huber, Howard Isaacson, Lars A. Buchhave, Erik Brugamyer, Paul Robertson, William D. Cochran, Phillip J. MacQueen, Mathieu Havel, Phillip Lucas, Steve B. Howell, Debra Fischer, Elisa Quintana, David R. Ciardi"
Discovery Paper - Title " Hot Jupiter That Found A Companion"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-424+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-424%20b/
Kepler-424 b
Kepler-424 b

  • Kepler-424 b is an exoplanet orbiting the star Kepler-424, located about 2277.8 light-years (698.4 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-424 has apparent magnitude of 14.5, with absolute magnitude of 5.3.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5482 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-424 b orbits around the star Kepler-424 every 3.3 days with its orbital distance of 0.04 AU ( 6582306.3 km)
  • (Projected orbit of Kepler-424 b around its host star Kepler-424)


  • The Star Kepler-424 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.686 AU ( 102556820.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.948 AU ( 141760326.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.444 AU ( 216011366.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.125 AU ( 317870188.1 km)
  • Radiation at Planetary Boundary of Kepler-424 b : 634325.73 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-424)



  • Kopparapu Recent Venus for Star Kepler-424 distance : 0.723 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-424 distance : 0.916 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-424 distance : 0.884 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-424 distance : 0.970 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-424 distance : 1.631 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-424 distance : 1.720 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-424)



  • Original Kopparapu Recent Venus for Star Kepler-424 distance : 0.720 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-424 distance : 0.942 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-424 distance : 0.953 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-424 distance : 1.659 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-424 distance : 1.725 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-424)



    (Position in Stellar Map of star Kepler-424 and its Exoplanet Kepler-424 b)



    (Zoomed position in Stellar Map of star Kepler-424 and its Exoplanet Kepler-424 b (zoom level 3))