HD 157172

Display orbital revolution around the star HD 157172
Imaginary Picture of Star HD 157172
Star Name : HD 157172
Alternate Name :
Star Distance (LY/pc): 108.0702 (LY) 33.1345 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8056 (Rsun, estimated)
Stellar Mass (Msun): 0.0000 (Msun/observed) 0.8738 (Msun/estimated)
Spectral type : G8.5V
Metalicity : 0.0000
Absolute Magnitude : 5.26
Apparent Magnitude : 7.86
Right Ascension(RA) : 260.64402
Declination(DEC) : -19.61611
  • This is the HD 157172 . The star HD 157172 islocated about 108.1 light-years (33.1 pc) away from our Solar System.
  • The star HD 157172 has apparent magnitude of 7.9, with absolute magnitude of 5.3.
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 157172 b radius 0.267459 mass 0.120000 orbital distance 0.416000
    (Illustration of the HD 157172's Planetary System)



    The Star HD 157172 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.517 AU ( 77267751.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.714 AU ( 106804225.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.088 AU ( 162746003.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.601 AU ( 239487873.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 157172)



    Kopparapu's Recent Venus for Star HD 157172 distance : 0.546 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 157172 distance : 0.691 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 157172 distance : 0.668 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 157172 distance : 0.732 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 157172 distance : 1.233 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 157172 distance : 1.301 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 157172)



  • Original Kopparapu Recent Venus for Star HD 157172 distance : 0.543 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 157172 distance : 0.711 AU
  • Original Kopparapu Moist Greenhouse for Star HD 157172 distance : 0.719 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 157172 distance : 1.255 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 157172 distance : 1.305 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 157172)



    (Position in Stellar Map of star HD 157172 )



    (Zoomed position in Stellar Map of star HD 157172 (zoom level 3))

    (Synthetic Spectrum of star HD 80275*)
    *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