55 Cnc A

Display orbital revolution around the star 55 Cnc A
Imaginary Picture of Star 55 Cnc A
Star Name : 55 Cnc A
Alternate Name : "TOI-1773, HD 75732, GJ 324 A, rho1 Cnc A"
Star Distance (LY/pc): 41.0484 (LY) 12.5855 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9630 (Rsun, estimated)
Stellar Mass (Msun): 0.9000 (Msun/observed) 0.9000 (Msun/estimated)
Spectral type : G8V
Metalicity : 0.3500
Absolute Magnitude : 5.45
Apparent Magnitude : 5.95
Right Ascension(RA) : 133.15417
Declination(DEC) : 28.33389
  • This is the 55 Cnc A . The star 55 Cnc A islocated about 41.0 light-years (12.6 pc) away from our Solar System.
  • The star 55 Cnc A has apparent magnitude of 6.0, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5250 with its spectral types of G8V
  • Number of Extrasolar Planets : 5
  • Name of the 1 Planet 55 Cnc Ab radius 1.049936 mass 0.840000 orbital distance 0.113390
  • Name of the 2 Planet 55 Cnc Ac radius 0.650139 mass 0.178400 orbital distance 0.237350
  • Name of the 3 Planet 55 Cnc Ad radius 0.907830 mass 3.840000 orbital distance 5.446000
  • Name of the 4 Planet 55 Cnc Ae radius 0.173700 mass 0.027030 orbital distance 0.015439
  • Name of the 5 Planet 55 Cnc Af radius 0.280633 mass 0.147900 orbital distance 0.773300
    (Illustration of the 55 Cnc A's Planetary System)



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

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.575 AU ( 86020706.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.795 AU ( 118903096.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.211 AU ( 181182006.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.782 AU ( 266617259.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 55 Cnc A)



    Kopparapu's Recent Venus for Star 55 Cnc A distance : 0.614 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star 55 Cnc A distance : 0.778 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star 55 Cnc A distance : 0.751 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star 55 Cnc A distance : 0.824 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star 55 Cnc A distance : 1.396 AU
    Kopparapu's Outer Boundary for Early Mars for Star 55 Cnc A distance : 1.473 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 55 Cnc A)



  • Original Kopparapu Recent Venus for Star 55 Cnc A distance : 0.610 AU
  • Original Kopparapu Runaway Greenhouse for Star 55 Cnc A distance : 0.801 AU
  • Original Kopparapu Moist Greenhouse for Star 55 Cnc A distance : 0.807 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 55 Cnc A distance : 1.420 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 55 Cnc A distance : 1.477 AU

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



    (Position in Stellar Map of star 55 Cnc A )



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

    (Synthetic Spectrum of star GSC 03467-00030*)
    *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