Proxima Centauri
Imaginary Picture of Star Proxima Centauri
Star Name : Proxima Centauri
Alternate Name : "alpha Cen C, GL 551, HIP 70890"
Star Distance (LY/pc): 4.2237 (LY) 1.2950 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.1410 (Rsun, estimated)
Stellar Mass (Msun): 0.1200 (Msun/observed) 0.1200 (Msun/estimated)
Spectral type : M5.5V
Metalicity : 0.0000
Absolute Magnitude : 15.57
Apparent Magnitude : 11.13
Right Ascension(RA) : 217.42895
Declination(DEC) : -63.16951
  • This is the Proxima Centauri . The star Proxima Centauri islocated about 4.2 light-years ( 1.3 pc) away from our Solar System.
  • The star Proxima Centauri has apparent magnitude of 11.1, with absolute magnitude of 15.6.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 3050 with its spectral types of M5.5V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet Proxima Centauri b radius 0.089916 mass 0.003691 orbital distance 0.049000
  • Name of the 2 Planet Proxima Centauri c radius 0.160521 mass 0.030000 orbital distance 1.480000
    (Illustration of the Proxima Centauri's Planetary System)



    The Star Proxima Centauri 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.028 AU ( 4250861.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.039 AU ( 5875800.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.060 AU ( 8953420.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.088 AU ( 13175349.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Proxima Centauri)



    Kopparapu's Recent Venus for Star Proxima Centauri distance : 0.032 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Proxima Centauri distance : 0.041 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Proxima Centauri distance : 0.039 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Proxima Centauri distance : 0.043 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Proxima Centauri distance : 0.081 AU
    Kopparapu's Outer Boundary for Early Mars for Star Proxima Centauri distance : 0.086 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Proxima Centauri)



  • Original Kopparapu Recent Venus for Star Proxima Centauri distance : 0.032 AU
  • Original Kopparapu Runaway Greenhouse for Star Proxima Centauri distance : 0.042 AU
  • Original Kopparapu Moist Greenhouse for Star Proxima Centauri distance : 0.043 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Proxima Centauri distance : 0.082 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Proxima Centauri distance : 0.086 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Proxima Centauri)



    (Position in Stellar Map of star Proxima Centauri )



    (Zoomed position in Stellar Map of star Proxima Centauri (zoom level 3))