AD Leo
Imaginary Picture of Star AD Leo
Star Name : AD Leo
Alternate Name : GJ 388
Star Distance (LY/pc): 16.1970 (LY) 4.9660 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.4284 (Rsun, estimated)
Stellar Mass (Msun): 0.0000 (Msun/observed) 0.4207 (Msun/estimated)
Spectral type : M4V
Metalicity : 0.0000
Absolute Magnitude : 11.02
Apparent Magnitude : 9.50
Right Ascension(RA) : 154.90117
Declination(DEC) : 19.87000
  • This is the AD Leo . The star AD Leo islocated about 16.2 light-years ( 5.0 pc) away from our Solar System.
  • The star AD Leo has apparent magnitude of 9.5, with absolute magnitude of 11.0.
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet AD Leo b radius 0.238341 mass 0.072700 orbital distance 0.025000
    (Illustration of the AD Leo's Planetary System)



    The Star AD Leo 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.107 AU ( 16048133.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.148 AU ( 22182714.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.226 AU ( 33801547.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.332 AU ( 49740458.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star AD Leo)



    Kopparapu's Recent Venus for Star AD Leo distance : 0.121 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star AD Leo distance : 0.154 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star AD Leo distance : 0.148 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star AD Leo distance : 0.162 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star AD Leo distance : 0.300 AU
    Kopparapu's Outer Boundary for Early Mars for Star AD Leo distance : 0.317 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star AD Leo)



  • Original Kopparapu Recent Venus for Star AD Leo distance : 0.120 AU
  • Original Kopparapu Runaway Greenhouse for Star AD Leo distance : 0.159 AU
  • Original Kopparapu Moist Greenhouse for Star AD Leo distance : 0.159 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star AD Leo distance : 0.305 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star AD Leo distance : 0.317 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star AD Leo)



    (Position in Stellar Map of star AD Leo )



    (Zoomed position in Stellar Map of star AD Leo (zoom level 3))