Imaginary Picture of GJ 1132 b
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Exoplanet Name : GJ 1132 b
Alternate Name :
Radius (Rjup / Re): 0.1035 (Rjup) 1.1601 (Rearth)
Mass (Mjup / Me): 0.0052 (Mjup) 1.6596 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0154 (AU) 0.0154 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0045
Orbital Period(Observed/Estimated) 1.63 (Days Obs.) 1.64 (Days Est.)
Star Radiation at Atmospheric Boundary: 25333.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 563.1 (K)
Blackbody T 0.3(K) 528.8 (K)
Blackbody T 0.7(K) 427.8 (K)
Tidally Locked Blackbody T 0.1(K) 669.6 (K)
Tidally Locked Blackbody T 0.3(K) 628.8 (K)
Size Class: Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : GJ 1132
Alternate Name :
Star Distance(LY) : 39.3
Stellar Radius(Rsun) : 0.2 (Rsun Measured)
Stellar Mass(Msun) : 0.2 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 5.0 (GY)
Temperature : 3270 (K)
Spectral type : M3.5
Metalicity : -0.1
Absolute Magnitude: 13.1
Apparent Magnitude: 13.5
Right Ascension(RA) 153.7157
Declination (DEC) -47.1567
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GJ+1132+&submit=SIMBAD+search
Open Exoplanet Database Link
GJ 1132 b
GJ 1132 b

  • GJ 1132 b is an exoplanet orbiting the star GJ 1132, located about 39.3 light-years (12.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star GJ 1132 has apparent magnitude of 13.5, with absolute magnitude of 13.1.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3270 with its spectral types of M3.5
  • In this planetary system, the extrasolar planet GJ 1132 b orbits around the star GJ 1132 every 1.6 days with its orbital distance of 0.02 AU ( 2303807.2 km)
  • (Projected orbit of GJ 1132 b around its host star GJ 1132)


  • The Star GJ 1132 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.048 AU ( 7173382.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.066 AU ( 9915488.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.101 AU ( 15109010.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.149 AU ( 22233570.7 km)
  • Radiation at Planetary Boundary of GJ 1132 b : 25333.49 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 1132)



  • Kopparapu Recent Venus for Star GJ 1132 distance : 0.054 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 1132 distance : 0.069 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 1132 distance : 0.066 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 1132 distance : 0.073 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1132 distance : 0.135 AU
  • Kopparapu Outer Boundary for Early Mars for Star GJ 1132 distance : 0.143 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 1132)



  • Original Kopparapu Recent Venus for Star GJ 1132 distance : 0.054 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 1132 distance : 0.071 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 1132 distance : 0.071 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1132 distance : 0.137 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 1132 distance : 0.143 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 1132)



    (Position in Stellar Map of star GJ 1132 and its Exoplanet GJ 1132 b)



    (Zoomed position in Stellar Map of star GJ 1132 and its Exoplanet GJ 1132 b (zoom level 3))