Ross 128
Imaginary Picture of Star Ross 128
Star Name : Ross 128
Alternate Name : "Proxima Virginis, GJ447, HIP 57548"
Star Distance (LY/pc): 11.0260 (LY) 3.3806 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.1967 (Rsun, estimated)
Stellar Mass (Msun): 0.1680 (Msun/observed) 0.1680 (Msun/estimated)
Spectral type : M4
Metalicity : -0.0200
Absolute Magnitude : 13.51
Apparent Magnitude : 11.15
Right Ascension(RA) : 176.93499
Declination(DEC) : 0.80444
  • This is the Ross 128 . The star Ross 128 islocated about 11.0 light-years ( 3.4 pc) away from our Solar System.
  • The star Ross 128 has apparent magnitude of 11.2, with absolute magnitude of 13.5.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3192 with its spectral types of M4
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Ross 128 b radius 0.097887 mass 0.004400 orbital distance 0.049600
    (Illustration of the Ross 128's Planetary System)



    The Star Ross 128 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.043 AU ( 6495135.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.060 AU ( 8977975.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.091 AU ( 13680447.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.135 AU ( 20131377.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Ross 128)



    Kopparapu's Recent Venus for Star Ross 128 distance : 0.049 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Ross 128 distance : 0.062 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Ross 128 distance : 0.060 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Ross 128 distance : 0.066 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Ross 128 distance : 0.123 AU
    Kopparapu's Outer Boundary for Early Mars for Star Ross 128 distance : 0.130 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Ross 128)



  • Original Kopparapu Recent Venus for Star Ross 128 distance : 0.049 AU
  • Original Kopparapu Runaway Greenhouse for Star Ross 128 distance : 0.065 AU
  • Original Kopparapu Moist Greenhouse for Star Ross 128 distance : 0.065 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Ross 128 distance : 0.125 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Ross 128 distance : 0.130 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Ross 128)



    (Position in Stellar Map of star Ross 128 )



    (Zoomed position in Stellar Map of star Ross 128 (zoom level 3))