Imaginary Picture of Kepler-448 c

Display orbital revolution of Kepler-448 c around the hoststar Kepler-448
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Exoplanet Name : Kepler-448 c
Alternate Name : KOI-12 c
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 22.0000 (Mjup) 6994.6360 (Mearth)
Semi Major Axis / Orbital Distance Calculated 4.2000 (AU) 4.2000 (AU Est.)
Eccentricity : 0.6500
Orbital Period(Yrs) 6.8444
Orbital Period(Observed/Estimated) 2500.00 (Days Obs.) 2609.04 (Days Est.)
Star Radiation at Atmospheric Boundary: 399.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 199.5 (K)
Blackbody T 0.3(K) 187.4 (K)
Blackbody T 0.7(K) 151.6 (K)
Tidally Locked Blackbody T 0.1(K) 237.3 (K)
Tidally Locked Blackbody T 0.3(K) 222.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : TTV
Mass Detection : TTV
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-448
Alternate Name : KOI-12
Star Distance(LY) : 1317.6
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.6 (Msun Estimated)
Star Age : 1.5 (GY)
Temperature : 6820 (K)
Spectral type : F3
Metalicity : 0.0
Absolute Magnitude: 3.5
Apparent Magnitude: 11.5
Right Ascension(RA) 297.4537
Declination (DEC) 41.0110
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=Kepler-448+&submit=SIMBAD+search
Open Exoplanet Database Link
Kepler-448 c
Kepler-448 c

  • Kepler-448 c is an exoplanet orbiting the star Kepler-448, located about 1317.6 light-years (404.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-448 has apparent magnitude of 11.5, with absolute magnitude of 3.5.
  • It is 1.5 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6820 with its spectral types of F3
  • In this planetary system, the extrasolar planet Kepler-448 c orbits around the star Kepler-448 every 2500.0 days with its orbital distance of 4.20 AU ( 628311056.9 km)
  • (Projected orbit of Kepler-448 c around its host star Kepler-448)


  • The Star Kepler-448 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.642 AU ( 245705267.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.270 AU ( 339628889.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.459 AU ( 517519267.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.091 AU ( 761552273.6 km)
  • Radiation at Planetary Boundary of Kepler-448 c : 399.59 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-448)



  • Kopparapu Recent Venus for Star Kepler-448 distance : 1.601 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-448 distance : 2.028 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-448 distance : 1.958 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-448 distance : 2.145 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-448 distance : 3.514 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-448 distance : 3.706 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-448)



  • Original Kopparapu Recent Venus for Star Kepler-448 distance : 1.640 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-448 distance : 2.077 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-448 distance : 2.170 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-448 distance : 3.578 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-448 distance : 3.721 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-448)



    (Position in Stellar Map of star Kepler-448 and its Exoplanet Kepler-448 c)



    (Zoomed position in Stellar Map of star Kepler-448 and its Exoplanet Kepler-448 c (zoom level 3))