Imaginary Picture of G 196-3 b

Display orbital revolution of G 196-3 b around the hoststar G 196-3
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Exoplanet Name : G 196-3 b
Alternate Name : 2MASS J10042148+5023135 b
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 15.0000 (Mjup) 4769.0700 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 46.0565
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 1870.0 (K)
Blackbody T 0.1(K) 0.0 (K)
Blackbody T 0.3(K) 0.0 (K)
Blackbody T 0.7(K) 0.0 (K)
Tidally Locked Blackbody T 0.1(K) 0.0 (K)
Tidally Locked Blackbody T 0.3(K) 0.0 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : G 196-3
Alternate Name : 2MASS J10042148+5023135
Star Distance(LY) : 71.1
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3400 (K)
Spectral type : M2.5
UV portion[%]: 0.3
Visible portion[%]: 12.1
IR portion[%]: 87.6
Metalicity : 0.0
Absolute Magnitude: 10.1
Apparent Magnitude: 11.8
Right Ascension(RA) 151.0894
Declination (DEC) 50.3871
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
G 196-3 b
G 196-3 b

  • G 196-3 b is an exoplanet orbiting the star G 196-3, located about 71.1 light-years (21.8 pc) away from Solar System. Its discovery was publicly announced on 1998.
  • The host star G 196-3 has apparent magnitude of 11.8, with absolute magnitude of 10.1.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3400 with its spectral types of M2.5
  • (Projected orbit of G 196-3 b around its host star G 196-3)


  • The Star G 196-3 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.100 AU ( 14962649.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.138 AU ( 20682291.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.211 AU ( 31515234.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.310 AU ( 46376048.5 km)
  • Radiation at Planetary Boundary of G 196-3 b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star G 196-3)



  • Kopparapu Recent Venus for Star G 196-3 distance : 0.113 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star G 196-3 distance : 0.143 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star G 196-3 distance : 0.138 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star G 196-3 distance : 0.152 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star G 196-3 distance : 0.280 AU
  • Kopparapu Outer Boundary for Early Mars for Star G 196-3 distance : 0.295 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star G 196-3)



  • Original Kopparapu Recent Venus for Star G 196-3 distance : 0.112 AU
  • Original Kopparapu Runaway Greenhouse for Star G 196-3 distance : 0.148 AU
  • Original Kopparapu Moist Greenhouse for Star G 196-3 distance : 0.149 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star G 196-3 distance : 0.284 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star G 196-3 distance : 0.296 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star G 196-3)



    (Position in Stellar Map of star G 196-3 and its Exoplanet G 196-3 b)



    (Zoomed position in Stellar Map of star G 196-3 and its Exoplanet G 196-3 b (zoom level 3))

    (Synthetic Spectrum of star G 196-3*)
    *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