chi Sco

Display orbital revolution around the star chi Sco
Imaginary Picture of Star chi Sco
Star Name : chi Sco
Alternate Name : 17 Sco
Star Distance (LY/pc): 378.3410 (LY) 116.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 25.9200 (Rsun, estimated)
Stellar Mass (Msun): 1.2200 (Msun/observed) 1.2200 (Msun/estimated)
Spectral type : K3 III
Metalicity : -0.0100
Absolute Magnitude : -0.08
Apparent Magnitude : 5.24
Right Ascension(RA) : 243.46250
Declination(DEC) : -11.83778
  • This is the chi Sco . The star chi Sco islocated about 378.3 light-years (116.0 pc) away from our Solar System.
  • The star chi Sco has apparent magnitude of 5.2, with absolute magnitude of -0.1.
  • It is 1.2 times more massive and 25.9 times bigger compared with our Sun. The surface temperature is 4157 with its spectral types of K3 III
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet chi Sco b radius 1.049873 mass 4.320000 orbital distance 1.450000
    (Illustration of the chi Sco's Planetary System)



    The Star chi Sco 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 9.703 AU ( 1451620720.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 13.413 AU ( 2006519189.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 20.438 AU ( 3057491202.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 30.076 AU ( 4499232245.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star chi Sco)



    Kopparapu's Recent Venus for Star chi Sco distance : 10.830 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star chi Sco distance : 13.708 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star chi Sco distance : 13.240 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star chi Sco distance : 14.504 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star chi Sco distance : 25.813 AU
    Kopparapu's Outer Boundary for Early Mars for Star chi Sco distance : 27.231 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star chi Sco)



  • Original Kopparapu Recent Venus for Star chi Sco distance : 10.690 AU
  • Original Kopparapu Runaway Greenhouse for Star chi Sco distance : 14.168 AU
  • Original Kopparapu Moist Greenhouse for Star chi Sco distance : 14.145 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star chi Sco distance : 26.228 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star chi Sco distance : 27.276 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star chi Sco)



    (Position in Stellar Map of star chi Sco )



    (Zoomed position in Stellar Map of star chi Sco (zoom level 3))

    (Synthetic Spectrum of star K2-353*)
    *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