KELT-4 A
Imaginary Picture of Star KELT-4 A
Star Name : KELT-4 A
Alternate Name : BD+26 2091A
Star Distance (LY/pc): 688.1892 (LY) 211.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.6100 (Rsun, estimated)
Stellar Mass (Msun): 1.2040 (Msun/observed) 1.2040 (Msun/estimated)
Spectral type : F
Metalicity : -0.1160
Absolute Magnitude : 15.38
Apparent Magnitude : 22.00
Right Ascension(RA) : 157.06255
Declination(DEC) : 25.57319
  • This is the KELT-4 A . The star KELT-4 A islocated about 688.2 light-years (211.0 pc) away from our Solar System.
  • The star KELT-4 A has apparent magnitude of 22.0, with absolute magnitude of 15.4.
  • It is 1.2 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6207 with its spectral types of F
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet KELT-4 A b radius 1.706000 mass 0.884000 orbital distance 0.043210
    (Illustration of the KELT-4 A's Planetary System)



    The Star KELT-4 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.344 AU ( 201023800.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.857 AU ( 277867426.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.830 AU ( 423408465.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.165 AU ( 623064105.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KELT-4 A)



    Kopparapu's Recent Venus for Star KELT-4 A distance : 1.357 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star KELT-4 A distance : 1.718 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star KELT-4 A distance : 1.660 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star KELT-4 A distance : 1.818 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star KELT-4 A distance : 3.005 AU
    Kopparapu's Outer Boundary for Early Mars for Star KELT-4 A distance : 3.169 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KELT-4 A)



  • Original Kopparapu Recent Venus for Star KELT-4 A distance : 1.371 AU
  • Original Kopparapu Runaway Greenhouse for Star KELT-4 A distance : 1.763 AU
  • Original Kopparapu Moist Greenhouse for Star KELT-4 A distance : 1.814 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-4 A distance : 3.059 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KELT-4 A distance : 3.181 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KELT-4 A)



    (Position in Stellar Map of star KELT-4 A )



    (Zoomed position in Stellar Map of star KELT-4 A (zoom level 3))