Imaginary Picture of GJ 1061 d
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Exoplanet Name : GJ 1061 d
Alternate Name : L 372-58 d
Radius (Rjup / Re): 0.1009 (Rjup) 1.1314 (Rearth)
Mass (Mjup / Me): 0.0049 (Mjup) 1.5706 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0520 (AU) 0.0520 (AU Est.)
Eccentricity : 0.5400
Orbital Period(Yrs) 0.0340
Orbital Period(Observed/Estimated) 12.43 (Days Obs.) 12.50 (Days Est.)
Star Radiation at Atmospheric Boundary: 839.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 240.2 (K)
Blackbody T 0.3(K) 225.6 (K)
Blackbody T 0.7(K) 182.5 (K)
Tidally Locked Blackbody T 0.1(K) 285.7 (K)
Tidally Locked Blackbody T 0.3(K) 268.3 (K)
Size Class: 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 1061
Alternate Name : L 372-58
Star Distance(LY) : 12.0
Stellar Radius(Rsun) : 0.2 (Rsun Measured)
Stellar Mass(Msun) : 0.1 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 7.0 (GY)
Temperature : 2953 (K)
Spectral type : M5.5V
Metalicity : -0.1
Absolute Magnitude: 15.2
Apparent Magnitude: 13.0
Right Ascension(RA) 53.9987
Declination (DEC) -44.5128
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+1061+&submit=SIMBAD+search
Open Exoplanet Database Link
GJ 1061 d
GJ 1061 d

  • GJ 1061 d is an exoplanet orbiting the star GJ 1061, located about 12.0 light-years ( 3.7 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star GJ 1061 has apparent magnitude of 13.0, with absolute magnitude of 15.2.
  • It is 0.1 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 2953 with its spectral types of M5.5V
  • In this planetary system, the extrasolar planet GJ 1061 d orbits around the star GJ 1061 every 12.4 days with its orbital distance of 0.05 AU ( 7779089.3 km)
  • (Projected orbit of GJ 1061 d around its host star GJ 1061)


  • The Star GJ 1061 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.029 AU ( 4408690.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.041 AU ( 6093962.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.062 AU ( 9285850.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.091 AU ( 13664535.0 km)
  • Radiation at Planetary Boundary of GJ 1061 d : 839.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 1061)



  • Kopparapu Recent Venus for Star GJ 1061 distance : 0.033 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 1061 distance : 0.042 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 1061 distance : 0.041 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 1061 distance : 0.045 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1061 distance : 0.085 AU
  • Kopparapu Outer Boundary for Early Mars for Star GJ 1061 distance : 0.089 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 1061)



  • Original Kopparapu Recent Venus for Star GJ 1061 distance : 0.033 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 1061 distance : 0.044 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 1061 distance : 0.044 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1061 distance : 0.086 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 1061 distance : 0.089 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 1061)



    (Position in Stellar Map of star GJ 1061 and its Exoplanet GJ 1061 d)



    (Zoomed position in Stellar Map of star GJ 1061 and its Exoplanet GJ 1061 d (zoom level 3))