Imaginary Picture of GJ 3293 c

Display orbital revolution of GJ 3293 c around the hoststar GJ 3293
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Exoplanet Name : GJ 3293 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2334 (Rjup) 2.6161 (Rearth)
Mass (Mjup / Me): 0.0664 (Mjup) 21.0984 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3618 (AU) 0.3618 (AU Est.)
Eccentricity : 0.1100
Orbital Period(Yrs) 0.3357
Orbital Period(Observed/Estimated) 122.62 (Days Obs.) 122.62 (Days Est.)
Surface Gravity (G Earth) 3.0828
Star Radiation at Atmospheric Boundary: 220.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 172.0 (K)
Blackbody T 0.3(K) 161.6 (K)
Blackbody T 0.7(K) 130.7 (K)
Tidally Locked Blackbody T 0.1(K) 204.6 (K)
Tidally Locked Blackbody T 0.3(K) 192.1 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : GJ 3293
Alternate Name :
Star Distance(LY) : 58.4
Stellar Radius(Rsun) : 0.4 (Rsun Measured)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3466 (K)
Spectral type : M2.5
UV portion[%]: 0.3
Visible portion[%]: 13.6
IR portion[%]: 86.1
Metalicity : 0.0
Absolute Magnitude: 10.7
Apparent Magnitude: 12.0
Right Ascension(RA) 67.1488
Declination (DEC) -25.1692
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GJ+3293+&submit=SIMBAD+search
Open Exoplanet Database Link 0
GJ 3293 c
GJ 3293 c

  • GJ 3293 c is an exoplanet orbiting the star GJ 3293, located about 58.4 light-years (17.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star GJ 3293 has apparent magnitude of 12.0, with absolute magnitude of 10.7.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3466 with its spectral types of M2.5
  • In this planetary system, the extrasolar planet GJ 3293 c orbits around the star GJ 3293 every 122.6 days with its orbital distance of 0.36 AU ( 54117029.7 km)
  • (Projected orbit of GJ 3293 c around its host star GJ 3293)


  • The Star GJ 3293 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.105 AU ( 15728836.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.145 AU ( 21741362.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.221 AU ( 33129024.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.326 AU ( 48750811.3 km)
  • Radiation at Planetary Boundary of GJ 3293 c : 220.73 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 3293)



  • Kopparapu Recent Venus for Star GJ 3293 distance : 0.119 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 3293 distance : 0.150 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 3293 distance : 0.145 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 3293 distance : 0.160 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3293 distance : 0.293 AU
  • Kopparapu Outer Boundary for Early Mars for Star GJ 3293 distance : 0.309 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 3293)



  • Original Kopparapu Recent Venus for Star GJ 3293 distance : 0.118 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 3293 distance : 0.156 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 3293 distance : 0.156 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3293 distance : 0.298 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 3293 distance : 0.310 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 3293)



    (Position in Stellar Map of star GJ 3293 and its Exoplanet GJ 3293 c)



    (Zoomed position in Stellar Map of star GJ 3293 and its Exoplanet GJ 3293 c (zoom level 3))

    (Synthetic Spectrum of star GJ 3293*)
    *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