Imaginary Picture of KOI-6793 b

Display orbital revolution of KOI-6793 b around the hoststar 2MASS J19255900+4228412
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Exoplanet Name : KOI-6793 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.0750 (Rjup) 0.8407 (Rearth)
Mass (Mjup / Me): 0.0017 (Mjup) 0.5279 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0443 (AU) 0.0443 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0099
Orbital Period(Observed/Estimated) 3.63 (Days Obs.) 3.62 (Days Est.)
Surface Gravity (G Earth) 0.7470
Star Radiation at Atmospheric Boundary: 341980.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1079.3 (K)
Blackbody T 0.3(K) 1013.6 (K)
Blackbody T 0.7(K) 820.1 (K)
Tidally Locked Blackbody T 0.1(K) 1283.5 (K)
Tidally Locked Blackbody T 0.3(K) 1205.4 (K)
Size Class: Earth-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 : 2MASS J19255900+4228412
Alternate Name : 6947623
Star Distance(LY) : 2139.4
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5411 (K)
Spectral type : G7
UV portion[%]: 6.5
Visible portion[%]: 42.5
IR portion[%]: 51.0
Metalicity : -0.1
Absolute Magnitude: 5.5
Apparent Magnitude: 14.6
Right Ascension(RA) 291.4959
Declination (DEC) 42.4781
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=2MASS+J19255900%2B4228412&submit=SIMBAD+search
Open Exoplanet Database Link
KOI-6793 b
KOI-6793 b

  • KOI-6793 b is an exoplanet orbiting the star 2MASS J19255900+4228412, located about 2139.4 light-years (656.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star 2MASS J19255900+4228412 has apparent magnitude of 14.6, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5411 with its spectral types of G7
  • In this planetary system, the extrasolar planet KOI-6793 b orbits around the star 2MASS J19255900+4228412 every 3.6 days with its orbital distance of 0.04 AU ( 6627185.7 km)
  • (Projected orbit of KOI-6793 b around its host star 2MASS J19255900+4228412)


  • The Star 2MASS J19255900+4228412 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.507 AU ( 75815841.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.701 AU ( 104797306.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.067 AU ( 159687902.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.571 AU ( 234987744.4 km)
  • Radiation at Planetary Boundary of KOI-6793 b : 341980.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J19255900+4228412)



  • Kopparapu Recent Venus for Star 2MASS J19255900+4228412 distance : 0.537 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J19255900+4228412 distance : 0.679 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J19255900+4228412 distance : 0.656 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J19255900+4228412 distance : 0.720 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19255900+4228412 distance : 1.213 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2MASS J19255900+4228412 distance : 1.280 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J19255900+4228412)



  • Original Kopparapu Recent Venus for Star 2MASS J19255900+4228412 distance : 0.534 AU
  • Original Kopparapu Runaway Greenhouse for Star 2MASS J19255900+4228412 distance : 0.699 AU
  • Original Kopparapu Moist Greenhouse for Star 2MASS J19255900+4228412 distance : 0.706 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19255900+4228412 distance : 1.234 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J19255900+4228412 distance : 1.283 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J19255900+4228412)



    (Position in Stellar Map of star 2MASS J19255900+4228412 and its Exoplanet KOI-6793 b)



    (Zoomed position in Stellar Map of star 2MASS J19255900+4228412 and its Exoplanet KOI-6793 b (zoom level 3))

    (Synthetic Spectrum of star 2MASS J19255900+4228412*)
    *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