VHS 1256-1257

Display orbital revolution around the star VHS 1256-1257
Imaginary Picture of Star VHS 1256-1257
Star Name : VHS 1256-1257
Alternate Name :
Star Distance (LY/pc): 41.4218 (LY) 12.7000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.0730 (Rsun, estimated)
Stellar Mass (Msun): 0.0730 (Msun/observed) 0.0730 (Msun/estimated)
Spectral type : M7.5
Metalicity : 0.0000
Absolute Magnitude : 17.28
Apparent Magnitude : 17.80
Right Ascension(RA) : 194.00833
Declination(DEC) : -12.95667
  • This is the VHS 1256-1257 . The star VHS 1256-1257 islocated about 41.4 light-years (12.7 pc) away from our Solar System.
  • The star VHS 1256-1257 has apparent magnitude of 17.8, with absolute magnitude of 17.3.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2620 with its spectral types of M7.5
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet VHS 1256-1257 b radius 1.250000 mass 19.000000 orbital distance 179.000000
    (Illustration of the VHS 1256-1257 's Planetary System)



    The Star VHS 1256-1257 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.011 AU ( 1623990.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.015 AU ( 2244779.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.023 AU ( 3420547.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.034 AU ( 5033485.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star VHS 1256-1257 )



    Kopparapu's Recent Venus for Star VHS 1256-1257 distance : 0.047 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star VHS 1256-1257 distance : 0.059 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star VHS 1256-1257 distance : 0.057 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star VHS 1256-1257 distance : 0.062 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star VHS 1256-1257 distance : 0.120 AU
    Kopparapu's Outer Boundary for Early Mars for Star VHS 1256-1257 distance : 0.126 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star VHS 1256-1257 )



  • Original Kopparapu Recent Venus for Star VHS 1256-1257 distance : 0.047 AU
  • Original Kopparapu Runaway Greenhouse for Star VHS 1256-1257 distance : 0.061 AU
  • Original Kopparapu Moist Greenhouse for Star VHS 1256-1257 distance : 0.062 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star VHS 1256-1257 distance : 0.122 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star VHS 1256-1257 distance : 0.127 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star VHS 1256-1257 )



    (Position in Stellar Map of star VHS 1256-1257 )



    (Zoomed position in Stellar Map of star VHS 1256-1257 (zoom level 3))

    (Synthetic Spectrum of star K2-167*)
    *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