GJ 720A

Display orbital revolution around the star GJ 720A
Imaginary Picture of Star GJ 720A
Star Name : GJ 720A
Alternate Name :
Star Distance (LY/pc): 50.7401 (LY) 15.5570 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5600 (Rsun, estimated)
Stellar Mass (Msun): 0.5700 (Msun/observed) 0.5700 (Msun/estimated)
Spectral type : M0.5V
Metalicity : -0.1400
Absolute Magnitude : 9.04
Apparent Magnitude : 10.00
Right Ascension(RA) : 278.82917
Declination(DEC) : 45.74556
  • This is the GJ 720A . The star GJ 720A islocated about 50.7 light-years (15.6 pc) away from our Solar System.
  • The star GJ 720A has apparent magnitude of 10.0, with absolute magnitude of 9.0.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3837 with its spectral types of M0.5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet GJ 720A b radius 0.211133 mass 0.042920 orbital distance 0.119000
    (Illustration of the GJ 720A's Planetary System)



    The Star GJ 720A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.179 AU ( 26719586.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.247 AU ( 36933451.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.376 AU ( 56278406.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.554 AU ( 82816141.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 720A)



    Kopparapu's Recent Venus for Star GJ 720A distance : 0.201 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 720A distance : 0.254 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 720A distance : 0.245 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 720A distance : 0.269 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 720A distance : 0.486 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 720A distance : 0.513 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 720A)



  • Original Kopparapu Recent Venus for Star GJ 720A distance : 0.199 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 720A distance : 0.263 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 720A distance : 0.263 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 720A distance : 0.494 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 720A distance : 0.514 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 720A)



    (Position in Stellar Map of star GJ 720A )



    (Zoomed position in Stellar Map of star GJ 720A (zoom level 3))

    (Synthetic Spectrum of star GJ 143*)
    *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