23 Lib

Display orbital revolution around the star 23 Lib
Imaginary Picture of Star 23 Lib
Star Name : 23 Lib
Alternate Name : HD 134987
Star Distance (LY/pc): 72.4066 (LY) 22.2000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2500 (Rsun, estimated)
Stellar Mass (Msun): 1.0700 (Msun/observed) 1.0700 (Msun/estimated)
Spectral type : G5 V
Metalicity : 0.2500
Absolute Magnitude : 4.72
Apparent Magnitude : 6.45
Right Ascension(RA) : 228.36667
Declination(DEC) : -25.30917
  • This is the 23 Lib . The star 23 Lib islocated about 72.4 light-years (22.2 pc) away from our Solar System.
  • The star 23 Lib has apparent magnitude of 6.5, with absolute magnitude of 4.7.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5740 with its spectral types of G5 V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet 23 Lib b radius 0.907830 mass 1.590000 orbital distance 0.810000
  • Name of the 2 Planet 23 Lib c radius 0.907830 mass 0.820000 orbital distance 5.800000
    (Illustration of the 23 Lib's Planetary System)



    The Star 23 Lib 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.892 AU ( 133472535.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.233 AU ( 184493924.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.879 AU ( 281127912.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.765 AU ( 413692038.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 23 Lib)



    Kopparapu's Recent Venus for Star 23 Lib distance : 0.927 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star 23 Lib distance : 1.174 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star 23 Lib distance : 1.134 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star 23 Lib distance : 1.243 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star 23 Lib distance : 2.075 AU
    Kopparapu's Outer Boundary for Early Mars for Star 23 Lib distance : 2.188 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 23 Lib)



  • Original Kopparapu Recent Venus for Star 23 Lib distance : 0.927 AU
  • Original Kopparapu Runaway Greenhouse for Star 23 Lib distance : 1.206 AU
  • Original Kopparapu Moist Greenhouse for Star 23 Lib distance : 1.227 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 23 Lib distance : 2.111 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 23 Lib distance : 2.195 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 23 Lib)



    (Position in Stellar Map of star 23 Lib )



    (Zoomed position in Stellar Map of star 23 Lib (zoom level 3))

    (Synthetic Spectrum of star *)
    *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