eta CrB

Display orbital revolution around the star eta CrB
Imaginary Picture of Star eta CrB
Star Name : eta CrB
Alternate Name : "2 CrB, GJ 584, STF 1937, KIR 4"
Star Distance (LY/pc): 60.7367 (LY) 18.6220 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2461 (Rsun, estimated)
Stellar Mass (Msun): 1.1900 (Msun/observed) 1.1900 (Msun/estimated)
Spectral type : G0V
Metalicity : 0.0577
Absolute Magnitude : 3.63
Apparent Magnitude : 4.98
Right Ascension(RA) : 230.80127
Declination(DEC) : 30.28783
  • This is the eta CrB . The star eta CrB islocated about 60.7 light-years (18.6 pc) away from our Solar System.
  • The star eta CrB has apparent magnitude of 5.0, with absolute magnitude of 3.6.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6028 with its spectral types of G0V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet eta CrB (AB)b radius 0.907830 mass 60.000000 orbital distance 3600.000000
    (Illustration of the eta CrB's Planetary System)



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

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.981 AU ( 146747745.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.356 AU ( 202843733.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.066 AU ( 309088960.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.040 AU ( 454837945.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eta CrB)



    Kopparapu's Recent Venus for Star eta CrB distance : 1.001 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star eta CrB distance : 1.268 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star eta CrB distance : 1.225 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star eta CrB distance : 1.342 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star eta CrB distance : 2.226 AU
    Kopparapu's Outer Boundary for Early Mars for Star eta CrB distance : 2.348 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star eta CrB)



  • Original Kopparapu Recent Venus for Star eta CrB distance : 1.008 AU
  • Original Kopparapu Runaway Greenhouse for Star eta CrB distance : 1.302 AU
  • Original Kopparapu Moist Greenhouse for Star eta CrB distance : 1.334 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eta CrB distance : 2.265 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star eta CrB distance : 2.356 AU

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



    (Position in Stellar Map of star eta CrB )



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

    (Synthetic Spectrum of star K2-361*)
    *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