HD 155918

Display orbital revolution around the star HD 155918
Imaginary Picture of Star HD 155918
Star Name : HD 155918
Alternate Name :
Star Distance (LY/pc): 89.8919 (LY) 27.5610 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.0190 (Rsun, estimated)
Stellar Mass (Msun): 1.0300 (Msun/observed) 1.0300 (Msun/estimated)
Spectral type : G2V
Metalicity : -0.6610
Absolute Magnitude : 4.84
Apparent Magnitude : 7.04
Right Ascension(RA) : 260.55271
Declination(DEC) : -75.34815
  • This is the HD 155918 . The star HD 155918 islocated about 89.9 light-years (27.6 pc) away from our Solar System.
  • The star HD 155918 has apparent magnitude of 7.0, with absolute magnitude of 4.8.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5771 with its spectral types of G2V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 155918 b radius 0.151774 mass 0.024000 orbital distance 0.030000
  • Name of the 2 Planet HD 155918 c radius 0.907830 mass 5.909000 orbital distance 13.183000
    (Illustration of the HD 155918's Planetary System)



    The Star HD 155918 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.735 AU ( 109985249.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.016 AU ( 152028357.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.549 AU ( 231657573.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.279 AU ( 340894267.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 155918)



    Kopparapu's Recent Venus for Star HD 155918 distance : 0.762 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 155918 distance : 0.965 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 155918 distance : 0.932 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 155918 distance : 1.022 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 155918 distance : 1.705 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 155918 distance : 1.798 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 155918)



  • Original Kopparapu Recent Venus for Star HD 155918 distance : 0.763 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 155918 distance : 0.992 AU
  • Original Kopparapu Moist Greenhouse for Star HD 155918 distance : 1.010 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 155918 distance : 1.735 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 155918 distance : 1.804 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 155918)



    (Position in Stellar Map of star HD 155918 )



    (Zoomed position in Stellar Map of star HD 155918 (zoom level 3))

    (Synthetic Spectrum of star HD 77338*)
    *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