Imaginary Picture of Kepler-799 c

Display orbital revolution of Kepler-799 c around the hoststar Kepler-799
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Exoplanet Name : Kepler-799 c
Alternate Name : "KOI-1261 c, KOI-1261.02"
Status : Confirmed
Radius (Rjup / Re): 0.2480 (Rjup) 2.7798 (Rearth)
Mass (Mjup / Me): 0.0215 (Mjup) 6.8273 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1214 (AU) 0.1214 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0416
Orbital Period(Observed/Estimated) 15.19 (Days Obs.) 15.85 (Days Est.)
Surface Gravity (G Earth) 0.8835
Star Radiation at Atmospheric Boundary: 74960.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 738.5 (K)
Blackbody T 0.3(K) 693.5 (K)
Blackbody T 0.7(K) 561.1 (K)
Tidally Locked Blackbody T 0.1(K) 878.2 (K)
Tidally Locked Blackbody T 0.3(K) 824.7 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-799
Alternate Name : "2MASS J19084197+4452428, KIC 8678594, KOI-1261, WISE J190841.96+445242.9"
Star Distance(LY) : 3356.1
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.0 (GY)
Temperature : 5681 (K)
Spectral type : G4
UV portion[%]: 7.5
Visible portion[%]: 44.3
IR portion[%]: 48.1
Metalicity : -0.1
Absolute Magnitude: 3.9
Apparent Magnitude: 14.0
Right Ascension(RA) 287.1749
Declination (DEC) 44.8786
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
Kepler-799 c
Kepler-799 c

  • Kepler-799 c is an exoplanet orbiting the star Kepler-799, located about 3356.1 light-years (1029.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-799 has apparent magnitude of 14.0, with absolute magnitude of 3.9.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5681 with its spectral types of G4
  • In this planetary system, the extrasolar planet Kepler-799 c orbits around the star Kepler-799 every 15.2 days with its orbital distance of 0.12 AU ( 18161181.5 km)
  • (Projected orbit of Kepler-799 c around its host star Kepler-799)


  • The Star Kepler-799 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.650 AU ( 97272625.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.899 AU ( 134456189.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.370 AU ( 204881477.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.015 AU ( 301492069.2 km)
  • Radiation at Planetary Boundary of Kepler-799 c : 74960.50 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-799)



  • Kopparapu Recent Venus for Star Kepler-799 distance : 0.678 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-799 distance : 0.858 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-799 distance : 0.829 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-799 distance : 0.909 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-799 distance : 1.520 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-799 distance : 1.603 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-799)



  • Original Kopparapu Recent Venus for Star Kepler-799 distance : 0.677 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-799 distance : 0.882 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-799 distance : 0.896 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-799 distance : 1.546 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-799 distance : 1.608 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-799)



    (Position in Stellar Map of star Kepler-799 and its Exoplanet Kepler-799 c)



    (Zoomed position in Stellar Map of star Kepler-799 and its Exoplanet Kepler-799 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-799*)
    *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