55 Cnc
Imaginary Picture of Star 55 Cnc
Star Name : 55 Cnc
Alternate Name :
Star Distance (LY/pc): 40.2477 (LY) 12.3400 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9430 (Rsun, estimated)
Stellar Mass (Msun): 0.9050 (Msun/observed) 0.9050 (Msun/estimated)
Spectral type : K0IV-V
Metalicity : 0.3100
Absolute Magnitude : 5.49
Apparent Magnitude : 5.95
Right Ascension(RA) : 133.14921
Declination(DEC) : 28.33389
  • This is the 55 Cnc . The star 55 Cnc islocated about 40.2 light-years (12.3 pc) away from our Solar System.
  • The star 55 Cnc has apparent magnitude of 6.0, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5196 with its spectral types of K0IV-V
  • Number of Extrasolar Planets : 5
  • Name of the 1 Planet 55 Cnc b radius 0.907830 mass 0.840000 orbital distance 0.113390
  • Name of the 2 Planet 55 Cnc c radius 0.907830 mass 0.178400 orbital distance 0.237350
  • Name of the 3 Planet 55 Cnc d radius 0.907830 mass 3.860000 orbital distance 5.446000
  • Name of the 4 Planet 55 Cnc e radius 0.173700 mass 0.027030 orbital distance 0.015439
  • Name of the 5 Planet 55 Cnc f radius 0.280633 mass 0.147900 orbital distance 0.773300
    (Illustration of the 55 Cnc's Planetary System)



    The Star 55 Cnc 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.552 AU ( 82510285.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.762 AU ( 114050777.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.162 AU ( 173788144.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.709 AU ( 255736868.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 55 Cnc)



    Kopparapu's Recent Venus for Star 55 Cnc distance : 0.591 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star 55 Cnc distance : 0.748 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star 55 Cnc distance : 0.723 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star 55 Cnc distance : 0.792 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star 55 Cnc distance : 1.346 AU
    Kopparapu's Outer Boundary for Early Mars for Star 55 Cnc distance : 1.419 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 55 Cnc)



  • Original Kopparapu Recent Venus for Star 55 Cnc distance : 0.586 AU
  • Original Kopparapu Runaway Greenhouse for Star 55 Cnc distance : 0.770 AU
  • Original Kopparapu Moist Greenhouse for Star 55 Cnc distance : 0.775 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 55 Cnc distance : 1.369 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 55 Cnc distance : 1.423 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 55 Cnc)



    (Position in Stellar Map of star 55 Cnc )



    (Zoomed position in Stellar Map of star 55 Cnc (zoom level 3))