Imaginary Picture of G 264-012 c

Display orbital revolution of G 264-012 c around the hoststar G 264-012
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Exoplanet Name : G 264-012 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1267 (Rjup) 1.4200 (Rearth)
Mass (Mjup / Me): 0.0118 (Mjup) 3.7517 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0525 (AU) 0.0525 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0220
Orbital Period(Observed/Estimated) 8.05 (Days Obs.) 8.06 (Days Est.)
Surface Gravity (G Earth) 1.8606
Star Radiation at Atmospheric Boundary: 5064.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 376.5 (K)
Blackbody T 0.3(K) 353.6 (K)
Blackbody T 0.7(K) 286.1 (K)
Tidally Locked Blackbody T 0.1(K) 447.8 (K)
Tidally Locked Blackbody T 0.3(K) 420.5 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : G 264-012
Alternate Name :
Star Distance(LY) : 52.1
Stellar Radius(Rsun) : 0.3 (Rsun Measured)
Stellar Mass(Msun) : 0.3 (Msun Measured) 0.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3326 (K)
Spectral type : M4.0V
UV portion[%]: 0.2
Visible portion[%]: 12.5
IR portion[%]: 87.2
Metalicity : 0.1
Absolute Magnitude: 11.0
Apparent Magnitude: 12.0
Right Ascension(RA) 326.6708
Declination (DEC) 66.8058
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 264-012 c
G 264-012 c

  • G 264-012 c is an exoplanet orbiting the star G 264-012, located about 52.1 light-years (16.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star G 264-012 has apparent magnitude of 12.0, with absolute magnitude of 11.0.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3326 with its spectral types of M4.0V
  • In this planetary system, the extrasolar planet G 264-012 c orbits around the star G 264-012 every 8.1 days with its orbital distance of 0.05 AU ( 7853888.2 km)
  • (Projected orbit of G 264-012 c around its host star G 264-012)


  • The Star G 264-012 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.073 AU ( 10934588.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.101 AU ( 15114458.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.154 AU ( 23031090.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.227 AU ( 33891258.4 km)
  • Radiation at Planetary Boundary of G 264-012 c : 5064.95 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star G 264-012)



  • Kopparapu Recent Venus for Star G 264-012 distance : 0.083 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star G 264-012 distance : 0.105 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star G 264-012 distance : 0.101 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star G 264-012 distance : 0.111 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star G 264-012 distance : 0.205 AU
  • Kopparapu Outer Boundary for Early Mars for Star G 264-012 distance : 0.217 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star G 264-012)



  • Original Kopparapu Recent Venus for Star G 264-012 distance : 0.082 AU
  • Original Kopparapu Runaway Greenhouse for Star G 264-012 distance : 0.108 AU
  • Original Kopparapu Moist Greenhouse for Star G 264-012 distance : 0.109 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star G 264-012 distance : 0.209 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star G 264-012 distance : 0.217 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star G 264-012)



    (Position in Stellar Map of star G 264-012 and its Exoplanet G 264-012 c)



    (Zoomed position in Stellar Map of star G 264-012 and its Exoplanet G 264-012 c (zoom level 3))

    (Synthetic Spectrum of star G 264-012*)
    *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