GJ 143
Imaginary Picture of Star GJ 143
Star Name : GJ 143
Alternate Name : "TOI-186, HD 21749"
Star Distance (LY/pc): 53.2539 (LY) 16.3277 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7300 (Rsun, estimated)
Stellar Mass (Msun): 0.7600 (Msun/observed) 0.7600 (Msun/estimated)
Spectral type : K4.5V
Metalicity : 0.0030
Absolute Magnitude : 7.24
Apparent Magnitude : 8.30
Right Ascension(RA) : 51.74676
Declination(DEC) : -63.49917
  • This is the GJ 143 . The star GJ 143 islocated about 53.3 light-years (16.3 pc) away from our Solar System.
  • The star GJ 143 has apparent magnitude of 8.3, with absolute magnitude of 7.2.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4640 with its spectral types of K4.5V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet GJ 143 b radius 0.232900 mass 0.071400 orbital distance 0.193200
  • Name of the 2 Planet GJ 143 c radius 0.079580 mass 0.011640 orbital distance 0.069500
    (Illustration of the GJ 143's Planetary System)



    The Star GJ 143 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.340 AU ( 50935073.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.471 AU ( 70405581.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.717 AU ( 107282526.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.055 AU ( 157870937.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 143)



    Kopparapu's Recent Venus for Star GJ 143 distance : 0.374 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 143 distance : 0.474 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 143 distance : 0.457 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 143 distance : 0.502 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 143 distance : 0.872 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 143 distance : 0.919 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 143)



  • Original Kopparapu Recent Venus for Star GJ 143 distance : 0.369 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 143 distance : 0.489 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 143 distance : 0.489 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 143 distance : 0.886 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 143 distance : 0.921 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 143)



    (Position in Stellar Map of star GJ 143 )



    (Zoomed position in Stellar Map of star GJ 143 (zoom level 3))