Imaginary Picture of Kepler-1799 b

Display orbital revolution of Kepler-1799 b around the hoststar Kepler-1799
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Exoplanet Name : Kepler-1799 b
Alternate Name : "KOI-2154 b, KOI-2154.01"
Status : Confirmed
Radius (Rjup / Re): 0.3683 (Rjup) 4.1281 (Rearth)
Mass (Mjup / Me): 0.0490 (Mjup) 15.5670 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1028 (AU) 0.1028 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0327
Orbital Period(Observed/Estimated) 11.93 (Days Obs.) 12.22 (Days Est.)
Surface Gravity (G Earth) 0.9135
Star Radiation at Atmospheric Boundary: 265333.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1013.0 (K)
Blackbody T 0.3(K) 951.3 (K)
Blackbody T 0.7(K) 769.7 (K)
Tidally Locked Blackbody T 0.1(K) 1204.6 (K)
Tidally Locked Blackbody T 0.3(K) 1131.3 (K)
Size Class: Neptune-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-1799
Alternate Name : "12505076, KOI-2154"
Star Distance(LY) : 7353.8
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.5 (GY)
Temperature : 5540 (K)
Spectral type : G5IV-V
UV portion[%]: 7.0
Visible portion[%]: 43.5
IR portion[%]: 49.4
Metalicity : 0.0
Absolute Magnitude: 4.2
Apparent Magnitude: 16.0
Right Ascension(RA) 288.3087
Declination (DEC) 51.4783
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-1799 b
Kepler-1799 b

  • Kepler-1799 b is an exoplanet orbiting the star Kepler-1799, located about 7353.8 light-years (2254.7 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1799 has apparent magnitude of 16.0, with absolute magnitude of 4.2.
  • It is 1.0 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5540 with its spectral types of G5IV-V
  • In this planetary system, the extrasolar planet Kepler-1799 b orbits around the star Kepler-1799 every 11.9 days with its orbital distance of 0.10 AU ( 15378661.1 km)
  • (Projected orbit of Kepler-1799 b around its host star Kepler-1799)


  • The Star Kepler-1799 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.036 AU ( 154969094.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.432 AU ( 214207786.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.182 AU ( 326405263.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.211 AU ( 480319643.4 km)
  • Radiation at Planetary Boundary of Kepler-1799 b : 265333.78 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1799)



  • Kopparapu Recent Venus for Star Kepler-1799 distance : 1.089 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1799 distance : 1.379 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1799 distance : 1.332 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1799 distance : 1.460 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1799 distance : 2.452 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1799 distance : 2.586 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1799)



  • Original Kopparapu Recent Venus for Star Kepler-1799 distance : 1.085 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1799 distance : 1.418 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1799 distance : 1.436 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1799 distance : 2.494 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1799 distance : 2.594 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1799)



    (Position in Stellar Map of star Kepler-1799 and its Exoplanet Kepler-1799 b)



    (Zoomed position in Stellar Map of star Kepler-1799 and its Exoplanet Kepler-1799 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1799*)
    *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