G 9-40

Display orbital revolution around the star G 9-40
Imaginary Picture of Star G 9-40
Star Name : G 9-40
Alternate Name : "2MASS J08585232+2104344, EPIC 212048748, K2-313, LSPM J0858+2104, TIC 203214081, WISE J085852.46+210430.8"
Star Distance (LY/pc): 91.0954 (LY) 27.9300 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.3100 (Rsun, estimated)
Stellar Mass (Msun): 0.2900 (Msun/observed) 0.2900 (Msun/estimated)
Spectral type : M2.5 V
Metalicity : 0.0400
Absolute Magnitude : 11.57
Apparent Magnitude : 13.80
Right Ascension(RA) : 134.71811
Declination(DEC) : 21.07605
  • This is the G 9-40 . The star G 9-40 islocated about 91.1 light-years (27.9 pc) away from our Solar System.
  • The star G 9-40 has apparent magnitude of 13.8, with absolute magnitude of 11.6.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3348 with its spectral types of M2.5 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet G 9-40 b radius 0.181000 mass 0.016000 orbital distance 0.038500
    (Illustration of the G 9-40's Planetary System)



    The Star G 9-40 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.075 AU ( 11261356.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.104 AU ( 15566137.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.159 AU ( 23719348.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.233 AU ( 34904060.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star G 9-40)



    Kopparapu's Recent Venus for Star G 9-40 distance : 0.085 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star G 9-40 distance : 0.108 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star G 9-40 distance : 0.104 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star G 9-40 distance : 0.114 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star G 9-40 distance : 0.211 AU
    Kopparapu's Outer Boundary for Early Mars for Star G 9-40 distance : 0.223 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star G 9-40)



  • Original Kopparapu Recent Venus for Star G 9-40 distance : 0.085 AU
  • Original Kopparapu Runaway Greenhouse for Star G 9-40 distance : 0.112 AU
  • Original Kopparapu Moist Greenhouse for Star G 9-40 distance : 0.112 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star G 9-40 distance : 0.215 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star G 9-40 distance : 0.223 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star G 9-40)



    (Position in Stellar Map of star G 9-40 )



    (Zoomed position in Stellar Map of star G 9-40 (zoom level 3))

    (Synthetic Spectrum of star GJ 667 C*)
    *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