XO-2S
Imaginary Picture of Star XO-2S
Star Name : XO-2S
Alternate Name :
Star Distance (LY/pc): 488.2575 (LY) 149.7006 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.0200 (Rsun, estimated)
Stellar Mass (Msun): 0.9820 (Msun/observed) 0.9820 (Msun/estimated)
Spectral type : G9V
Metalicity : 0.3900
Absolute Magnitude : 5.32
Apparent Magnitude : 11.20
Right Ascension(RA) : 117.40417
Declination(DEC) : 50.21750
  • This is the XO-2S . The star XO-2S islocated about 488.3 light-years (149.7 pc) away from our Solar System.
  • The star XO-2S has apparent magnitude of 11.2, with absolute magnitude of 5.3.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5399 with its spectral types of G9V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet XO-2S b radius 0.907830 mass 0.259000 orbital distance 0.134400
  • Name of the 2 Planet XO-2S c radius 0.907830 mass 1.370000 orbital distance 0.475600
    (Illustration of the XO-2S's Planetary System)



    The Star XO-2S 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.644 AU ( 96357370.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.890 AU ( 133191067.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.357 AU ( 202953710.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.996 AU ( 298655276.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star XO-2S)



    Kopparapu's Recent Venus for Star XO-2S distance : 0.682 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star XO-2S distance : 0.864 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star XO-2S distance : 0.835 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star XO-2S distance : 0.915 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star XO-2S distance : 1.544 AU
    Kopparapu's Outer Boundary for Early Mars for Star XO-2S distance : 1.628 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star XO-2S)



  • Original Kopparapu Recent Venus for Star XO-2S distance : 0.679 AU
  • Original Kopparapu Runaway Greenhouse for Star XO-2S distance : 0.889 AU
  • Original Kopparapu Moist Greenhouse for Star XO-2S distance : 0.898 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star XO-2S distance : 1.570 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star XO-2S distance : 1.633 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star XO-2S)



    (Position in Stellar Map of star XO-2S )



    (Zoomed position in Stellar Map of star XO-2S (zoom level 3))