Imaginary Picture of Kepler-798 b

Display orbital revolution of Kepler-798 b around the hoststar Kepler-798
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Exoplanet Name : Kepler-798 b
Alternate Name : "2MASS J19295476+4208322 b, K01245.01, KIC 6693640 b, KOI-1245 b, KOI-1245.01, WISE J192954.80+420832.4 b"
Status : Confirmed
Radius (Rjup / Re): 0.2130 (Rjup) 2.3875 (Rearth)
Mass (Mjup / Me): 0.0186 (Mjup) 5.9266 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1189 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0376
Orbital Period(Observed/Estimated) 13.72 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0397
Star Radiation at Atmospheric Boundary: 189023.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 930.6 (K)
Blackbody T 0.3(K) 873.9 (K)
Blackbody T 0.7(K) 707.1 (K)
Tidally Locked Blackbody T 0.1(K) 1106.7 (K)
Tidally Locked Blackbody T 0.3(K) 1039.3 (K)
Size Class: sub-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-798
Alternate Name : "2MASS J19295476+4208322, KIC 6693640, KOI-1245, WISE J192954.80+420832.4"
Star Distance(LY) : 3170.1
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.8 (GY)
Temperature : 6395 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 3.2
Apparent Magnitude: 13.1
Right Ascension(RA) 292.4782
Declination (DEC) 42.1423
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 673 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-798&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-798%20b/
Kepler-798 b
Kepler-798 b

  • Kepler-798 b is an exoplanet orbiting the star Kepler-798, located about 3170.1 light-years (972.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-798 has apparent magnitude of 13.1, with absolute magnitude of 3.2.
  • It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6395 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-798 b orbits around the star Kepler-798 every 13.7 days with its orbital distance of 0.12 AU ( 17780184.5 km)
  • (Projected orbit of Kepler-798 b around its host star Kepler-798)


  • The Star Kepler-798 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.011 AU ( 151225439.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.397 AU ( 209033076.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.129 AU ( 318520150.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.133 AU ( 468716354.6 km)
  • Radiation at Planetary Boundary of Kepler-798 b : 189023.85 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-798)



  • Kopparapu Recent Venus for Star Kepler-798 distance : 1.009 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-798 distance : 1.278 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-798 distance : 1.234 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-798 distance : 1.353 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-798 distance : 2.227 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-798 distance : 2.349 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-798)



  • Original Kopparapu Recent Venus for Star Kepler-798 distance : 1.024 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-798 distance : 1.311 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-798 distance : 1.355 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-798 distance : 2.268 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-798 distance : 2.358 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-798)



    (Position in Stellar Map of star Kepler-798 and its Exoplanet Kepler-798 b)



    (Zoomed position in Stellar Map of star Kepler-798 and its Exoplanet Kepler-798 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-798*)
    *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