Barnard's star
Imaginary Picture of Star Barnard's star
Star Name : Barnard's star
Alternate Name : GJ 699
Star Distance (LY/pc): 5.9577 (LY) 1.8266 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.1780 (Rsun, estimated)
Stellar Mass (Msun): 0.1630 (Msun/observed) 0.1630 (Msun/estimated)
Spectral type : M4V
Metalicity : 0.0000
Absolute Magnitude : 13.19
Apparent Magnitude : 9.50
Right Ascension(RA) : 269.45208
Declination(DEC) : 4.69333
  • This is the Barnard's star . The star Barnard's star islocated about 6.0 light-years ( 1.8 pc) away from our Solar System.
  • The star Barnard's star has apparent magnitude of 9.5, with absolute magnitude of 13.2.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3278 with its spectral types of M4V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Barnard's b radius 0.121886 mass 0.010160 orbital distance 0.000000
    (Illustration of the Barnard's star's Planetary System)



    The Star Barnard's star 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.041 AU ( 6198634.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.057 AU ( 8568132.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.087 AU ( 13055937.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.128 AU ( 19212384.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Barnard's star)



    Kopparapu's Recent Venus for Star Barnard's star distance : 0.047 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Barnard's star distance : 0.059 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Barnard's star distance : 0.057 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Barnard's star distance : 0.063 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Barnard's star distance : 0.117 AU
    Kopparapu's Outer Boundary for Early Mars for Star Barnard's star distance : 0.123 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Barnard's star)



  • Original Kopparapu Recent Venus for Star Barnard's star distance : 0.047 AU
  • Original Kopparapu Runaway Greenhouse for Star Barnard's star distance : 0.062 AU
  • Original Kopparapu Moist Greenhouse for Star Barnard's star distance : 0.062 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Barnard's star distance : 0.119 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Barnard's star distance : 0.123 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Barnard's star)



    (Position in Stellar Map of star Barnard's star )



    (Zoomed position in Stellar Map of star Barnard's star (zoom level 3))