Imaginary Picture of GJ 3323 b
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Exoplanet Name : GJ 3323 b
Alternate Name :
Radius (Rjup / Re): 0.1079 (Rjup) 1.2093 (Rearth)
Mass (Mjup / Me): 0.0064 (Mjup) 2.0221 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0328 (AU) 0.0328 (AU Est.)
Eccentricity : 0.2300
Orbital Period(Yrs) 0.0147
Orbital Period(Observed/Estimated) 5.36 (Days Obs.) 5.36 (Days Est.)
Star Radiation at Atmospheric Boundary: 1605.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 282.5 (K)
Blackbody T 0.3(K) 265.3 (K)
Blackbody T 0.7(K) 214.7 (K)
Tidally Locked Blackbody T 0.1(K) 336.0 (K)
Tidally Locked Blackbody T 0.3(K) 315.5 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Habitable
Star Name : GJ 3323
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.1 (Rsun Measured)
Stellar Mass(Msun) : 0.2 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3159 (K)
Spectral type : M4
Metalicity : -0.3
Absolute Magnitude: 25.0
Apparent Magnitude: 12.2
Right Ascension(RA) 75.4896
Declination (DEC) -6.9461
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
GJ 3323 b
GJ 3323 b

  • GJ 3323 b is an exoplanet orbiting the star GJ 3323. Its discovery was publicly announced on 2017.
  • The host star GJ 3323 has apparent magnitude of 12.2, with absolute magnitude of 25.0.
  • It is 0.2 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 3159 with its spectral types of M4
  • In this planetary system, the extrasolar planet GJ 3323 b orbits around the star GJ 3323 every 5.4 days with its orbital distance of 0.03 AU ( 4909802.1 km)
  • (Projected orbit of GJ 3323 b around its host star GJ 3323)


  • The Star GJ 3323 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.026 AU ( 3848613.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.036 AU ( 5319789.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.054 AU ( 8106182.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.080 AU ( 11928602.8 km)
  • Radiation at Planetary Boundary of GJ 3323 b : 1605.54 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 3323)



  • Kopparapu Recent Venus for Star GJ 3323 distance : 0.029 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 3323 distance : 0.037 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 3323 distance : 0.036 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 3323 distance : 0.039 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3323 distance : 0.073 AU
  • Kopparapu Outer Boundary for Early Mars for Star GJ 3323 distance : 0.077 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 3323)



  • Original Kopparapu Recent Venus for Star GJ 3323 distance : 0.029 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 3323 distance : 0.038 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 3323 distance : 0.038 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3323 distance : 0.074 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 3323 distance : 0.077 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 3323)



    (Position in Stellar Map of star GJ 3323 and its Exoplanet GJ 3323 b)



    (Zoomed position in Stellar Map of star GJ 3323 and its Exoplanet GJ 3323 b (zoom level 3))