GJ 3998

Display orbital revolution around the star GJ 3998
Imaginary Picture of Star GJ 3998
Star Name : GJ 3998
Alternate Name :
Star Distance (LY/pc): 58.0558 (LY) 17.8000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.4900 (Rsun, estimated)
Stellar Mass (Msun): 0.5000 (Msun/observed) 0.5000 (Msun/estimated)
Spectral type : M1
Metalicity : -0.1600
Absolute Magnitude : 9.55
Apparent Magnitude : 10.80
Right Ascension(RA) : 259.00265
Declination(DEC) : 11.05833
  • This is the GJ 3998 . The star GJ 3998 islocated about 58.1 light-years (17.8 pc) away from our Solar System.
  • The star GJ 3998 has apparent magnitude of 10.8, with absolute magnitude of 9.5.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3722 with its spectral types of M1
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet GJ 3998 b radius 0.113689 mass 0.007770 orbital distance 0.029000
  • Name of the 2 Planet GJ 3998 c radius 0.144391 mass 0.019700 orbital distance 0.089000
    (Illustration of the GJ 3998's Planetary System)



    The Star GJ 3998 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.147 AU ( 21999202.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.203 AU ( 30408646.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.310 AU ( 46336047.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.456 AU ( 68185524.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 3998)



    Kopparapu's Recent Venus for Star GJ 3998 distance : 0.166 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 3998 distance : 0.210 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 3998 distance : 0.202 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 3998 distance : 0.221 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 3998 distance : 0.403 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 3998 distance : 0.426 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 3998)



  • Original Kopparapu Recent Venus for Star GJ 3998 distance : 0.164 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 3998 distance : 0.217 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 3998 distance : 0.217 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3998 distance : 0.410 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 3998 distance : 0.426 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 3998)



    (Position in Stellar Map of star GJ 3998 )



    (Zoomed position in Stellar Map of star GJ 3998 (zoom level 3))

    (Synthetic Spectrum of star GJ 317*)
    *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