Imaginary Picture of Kepler-598 c

Display orbital revolution of Kepler-598 c around the hoststar Kepler-598
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Exoplanet Name : Kepler-598 c
Alternate Name : "2MASS J19322962+4056051 c, K00555.02, KIC 5709725 c, KOI-555 c, KOI-555.02, WISE J193229.62+405605.3 c"
Status : Confirmed
Radius (Rjup / Re): 0.2700 (Rjup) 3.0264 (Rearth)
Mass (Mjup / Me): 0.0232 (Mjup) 7.3889 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.3654 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2368
Orbital Period(Observed/Estimated) 86.49 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.8067
Star Radiation at Atmospheric Boundary: 5388.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 382.4 (K)
Blackbody T 0.3(K) 359.1 (K)
Blackbody T 0.7(K) 290.6 (K)
Tidally Locked Blackbody T 0.1(K) 454.7 (K)
Tidally Locked Blackbody T 0.3(K) 427.0 (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-598
Alternate Name : "2MASS J19322962+4056051, KIC 5709725, KOI-555, WISE J193229.62+405605.3"
Star Distance(LY) : 2237.4
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 7.6 (GY)
Temperature : 5307 (K)
Spectral type : K0
UV portion[%]: 5.8
Visible portion[%]: 41.5
IR portion[%]: 52.6
Metalicity : 0.0
Absolute Magnitude: 4.2
Apparent Magnitude: 13.4
Right Ascension(RA) 293.1234
Declination (DEC) 40.9348
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-598 c
Kepler-598 c

  • Kepler-598 c is an exoplanet orbiting the star Kepler-598, located about 2237.4 light-years (686.0 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star Kepler-598 has apparent magnitude of 13.4, with absolute magnitude of 4.2.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5307 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-598 c orbits around the star Kepler-598 every 86.5 days with its orbital distance of 0.37 AU ( 54663488.2 km)
  • (Projected orbit of Kepler-598 c around its host star Kepler-598)


  • The Star Kepler-598 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.525 AU ( 78497303.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.725 AU ( 108503787.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.105 AU ( 165335760.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.626 AU ( 243298814.0 km)
  • Radiation at Planetary Boundary of Kepler-598 c : 5388.33 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-598)



  • Kopparapu Recent Venus for Star Kepler-598 distance : 0.559 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-598 distance : 0.708 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-598 distance : 0.683 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-598 distance : 0.750 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-598 distance : 1.268 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-598 distance : 1.337 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-598)



  • Original Kopparapu Recent Venus for Star Kepler-598 distance : 0.555 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-598 distance : 0.728 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-598 distance : 0.734 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-598 distance : 1.289 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-598 distance : 1.341 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-598)



    (Position in Stellar Map of star Kepler-598 and its Exoplanet Kepler-598 c)



    (Zoomed position in Stellar Map of star Kepler-598 and its Exoplanet Kepler-598 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-598*)
    *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