HW Vir (AB)

Display orbital revolution around the star HW Vir (AB)
Imaginary Picture of Star HW Vir (AB)
Star Name : HW Vir (AB)
Alternate Name :
Star Distance (LY/pc): 590.3424 (LY) 181.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5595 (Rsun, estimated)
Stellar Mass (Msun): 0.6270 (Msun/observed) 0.6270 (Msun/estimated)
Spectral type : sdB+M
Metalicity : 0.0000
Absolute Magnitude : 4.61
Apparent Magnitude : 10.90
Right Ascension(RA) : 191.08432
Declination(DEC) : -8.67139
  • This is the HW Vir (AB) . The star HW Vir (AB) islocated about 590.3 light-years (181.0 pc) away from our Solar System.
  • The star HW Vir (AB) has apparent magnitude of 10.9, with absolute magnitude of 4.6.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of sdB+M
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HW Vir (AB) b radius 1.000000 mass 39.000000 orbital distance 4.690000
  • Name of the 2 Planet HW Vir (AB) c radius 2.000000 mass 40.000000 orbital distance 12.800000
    (Illustration of the HW Vir (AB)'s Planetary System)



    The Star HW Vir (AB) 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.367 AU ( 54846594.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.507 AU ( 75812326.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.772 AU ( 115521208.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.136 AU ( 169994518.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HW Vir (AB))



    Kopparapu's Recent Venus for Star HW Vir (AB) distance : 0.762 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HW Vir (AB) distance : 0.965 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HW Vir (AB) distance : 0.932 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HW Vir (AB) distance : 1.022 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HW Vir (AB) distance : 1.718 AU
    Kopparapu's Outer Boundary for Early Mars for Star HW Vir (AB) distance : 1.812 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HW Vir (AB))



  • Original Kopparapu Recent Venus for Star HW Vir (AB) distance : 0.759 AU
  • Original Kopparapu Runaway Greenhouse for Star HW Vir (AB) distance : 0.992 AU
  • Original Kopparapu Moist Greenhouse for Star HW Vir (AB) distance : 1.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HW Vir (AB) distance : 1.747 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HW Vir (AB) distance : 1.817 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HW Vir (AB))



    (Position in Stellar Map of star HW Vir (AB) )



    (Zoomed position in Stellar Map of star HW Vir (AB) (zoom level 3))

    (Synthetic Spectrum of star HD 152079*)
    *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