HD 457

Display orbital revolution around the star HD 457
Imaginary Picture of Star HD 457
Star Name : HD 457
Alternate Name :
Star Distance (LY/pc): 179.5081 (LY) 55.0375 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2810 (Rsun, estimated)
Stellar Mass (Msun): 1.1500 (Msun/observed) 1.1500 (Msun/estimated)
Spectral type : F9/G0IV-V
Metalicity : 0.3400
Absolute Magnitude : 4.03
Apparent Magnitude : 7.73
Right Ascension(RA) : 2.24866
Declination(DEC) : -39.73716
  • This is the HD 457 . The star HD 457 islocated about 179.5 light-years (55.0 pc) away from our Solar System.
  • The star HD 457 has apparent magnitude of 7.7, with absolute magnitude of 4.0.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6114 with its spectral types of F9/G0IV-V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 457 b radius 0.907830 mass 26.572000 orbital distance 15.369000
    (Illustration of the HD 457's Planetary System)



    The Star HD 457 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.037 AU ( 155187991.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.434 AU ( 214510359.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.185 AU ( 326866316.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.215 AU ( 480998103.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 457)



    Kopparapu's Recent Venus for Star HD 457 distance : 1.053 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 457 distance : 1.334 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 457 distance : 1.288 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 457 distance : 1.412 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 457 distance : 2.337 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 457 distance : 2.465 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 457)



  • Original Kopparapu Recent Venus for Star HD 457 distance : 1.062 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 457 distance : 1.369 AU
  • Original Kopparapu Moist Greenhouse for Star HD 457 distance : 1.406 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 457 distance : 2.379 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 457 distance : 2.474 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 457)



    (Position in Stellar Map of star HD 457 )



    (Zoomed position in Stellar Map of star HD 457 (zoom level 3))

    (Synthetic Spectrum of star HAT-P-22*)
    *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