SOI-4

Display orbital revolution around the star SOI-4
Imaginary Picture of Star SOI-4
Star Name : SOI-4
Alternate Name :
Star Distance (LY/pc): 0.0000 (LY) 0.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5700 (Rsun, estimated)
Stellar Mass (Msun): 0.0000 (Msun/observed) 0.0000 (Msun/estimated)
Spectral type : M9
Metalicity : 0.0000
Absolute Magnitude : 25.00
Apparent Magnitude : 22.00
Right Ascension(RA) : 2.79583
Declination(DEC) : 50.27278
  • The star SOI-4 has apparent magnitude of 22.0, with absolute magnitude of 25.0.
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet SOI-4 b radius 0.000000 mass 0.000000 orbital distance 0.000000
    (Illustration of the SOI-4's Planetary System)



    The Star SOI-4 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.134 AU ( 20116890.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.186 AU ( 27806799.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.283 AU ( 42371408.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.417 AU ( 62351384.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star SOI-4)



    Kopparapu's Recent Venus for Star SOI-4 distance : 0.152 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star SOI-4 distance : 0.193 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star SOI-4 distance : 0.186 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star SOI-4 distance : 0.203 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star SOI-4 distance : 0.379 AU
    Kopparapu's Outer Boundary for Early Mars for Star SOI-4 distance : 0.400 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star SOI-4)



  • Original Kopparapu Recent Venus for Star SOI-4 distance : 0.151 AU
  • Original Kopparapu Runaway Greenhouse for Star SOI-4 distance : 0.200 AU
  • Original Kopparapu Moist Greenhouse for Star SOI-4 distance : 0.200 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star SOI-4 distance : 0.385 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star SOI-4 distance : 0.400 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star SOI-4)



    (Position in Stellar Map of star SOI-4 )



    (Zoomed position in Stellar Map of star SOI-4 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1581*)
    *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