rho CrB

Display orbital revolution around the star rho CrB
Imaginary Picture of Star rho CrB
Star Name : rho CrB
Alternate Name : HD 143761
Star Distance (LY/pc): 56.8490 (LY) 17.4300 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2840 (Rsun, estimated)
Stellar Mass (Msun): 0.9900 (Msun/observed) 0.9900 (Msun/estimated)
Spectral type : G0V or G2V
Metalicity : -0.2400
Absolute Magnitude : 4.19
Apparent Magnitude : 5.40
Right Ascension(RA) : 240.26250
Declination(DEC) : 33.31417
  • This is the rho CrB . The star rho CrB islocated about 56.8 light-years (17.4 pc) away from our Solar System.
  • The star rho CrB has apparent magnitude of 5.4, with absolute magnitude of 4.2.
  • It is 1.0 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5822 with its spectral types of G0V or G2V
  • Number of Extrasolar Planets : 4
  • Name of the 1 Planet rho CrB b radius 1.049921 mass 1.040000 orbital distance 0.224500
  • Name of the 2 Planet rho Crb c radius 0.249498 mass 0.088700 orbital distance 0.420600
  • Name of the 3 Planet rho Crb d radius 0.234705 mass 0.068000 orbital distance 0.827000
  • Name of the 4 Planet rho Crb e radius 0.127012 mass 0.011920 orbital distance 0.106100
    (Illustration of the rho CrB's Planetary System)



    The Star rho CrB 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.943 AU ( 141048196.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.303 AU ( 194965468.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.986 AU ( 297084227.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.922 AU ( 437172455.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star rho CrB)



    Kopparapu's Recent Venus for Star rho CrB distance : 0.975 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star rho CrB distance : 1.234 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star rho CrB distance : 1.192 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star rho CrB distance : 1.307 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star rho CrB distance : 2.177 AU
    Kopparapu's Outer Boundary for Early Mars for Star rho CrB distance : 2.296 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star rho CrB)



  • Original Kopparapu Recent Venus for Star rho CrB distance : 0.977 AU
  • Original Kopparapu Runaway Greenhouse for Star rho CrB distance : 1.268 AU
  • Original Kopparapu Moist Greenhouse for Star rho CrB distance : 1.292 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star rho CrB distance : 2.215 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star rho CrB distance : 2.304 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star rho CrB)



    (Position in Stellar Map of star rho CrB )



    (Zoomed position in Stellar Map of star rho CrB (zoom level 3))

    (Synthetic Spectrum of star K2-206*)
    *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