Imaginary Picture of Kepler-312 b

Display orbital revolution of Kepler-312 b around the hoststar Kepler-312
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Exoplanet Name : Kepler-312 b
Alternate Name : "2MASS J19533498+4227351 b, K01628.02, KIC 6975129 b, KOI-1628 b, KOI-1628.02, WISE J195334.98+422735.1 b"
Radius (Rjup / Re): 0.1150 (Rjup) 1.2890 (Rearth)
Mass (Mjup / Me): 0.0077 (Mjup) 2.4457 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0310 (AU) 0.0310 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0049
Orbital Period(Observed/Estimated) 1.77 (Days Obs.) 1.80 (Days Est.)
Surface Gravity (G Earth) 1.4719
Star Radiation at Atmospheric Boundary: 5527726.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2164.1 (K)
Blackbody T 0.3(K) 2032.3 (K)
Blackbody T 0.7(K) 1644.4 (K)
Tidally Locked Blackbody T 0.1(K) 2573.6 (K)
Tidally Locked Blackbody T 0.3(K) 2416.9 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-312
Alternate Name : "2MASS J19533498+4227351, KIC 6975129, KOI-1628, WISE J195334.98+422735.1"
Star Distance(LY) : 2600.9
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6224 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 2.4
Apparent Magnitude: 11.9
Right Ascension(RA) 298.3958
Declination (DEC) 42.4598
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-312+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-312%20b/
Kepler-312 b
Kepler-312 b

  • Kepler-312 b is an exoplanet orbiting the star Kepler-312, located about 2600.9 light-years (797.4 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-312 has apparent magnitude of 11.9, with absolute magnitude of 2.4.
  • It is 1.2 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 6224 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-312 b orbits around the star Kepler-312 every 1.8 days with its orbital distance of 0.03 AU ( 4637534.0 km)
  • (Projected orbit of Kepler-312 b around its host star Kepler-312)


  • The Star Kepler-312 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.426 AU ( 213299903.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.971 AU ( 294836208.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.003 AU ( 449265135.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.419 AU ( 661113327.3 km)
  • Radiation at Planetary Boundary of Kepler-312 b : 5527726.11 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-312)



  • Kopparapu Recent Venus for Star Kepler-312 distance : 1.438 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-312 distance : 1.822 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-312 distance : 1.759 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-312 distance : 1.928 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-312 distance : 3.184 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-312 distance : 3.358 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-312)



  • Original Kopparapu Recent Venus for Star Kepler-312 distance : 1.454 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-312 distance : 1.869 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-312 distance : 1.924 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-312 distance : 3.241 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-312 distance : 3.370 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-312)



    (Position in Stellar Map of star Kepler-312 and its Exoplanet Kepler-312 b)



    (Zoomed position in Stellar Map of star Kepler-312 and its Exoplanet Kepler-312 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-312*)
    *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