Imaginary Picture of KOI-6666 b

Display orbital revolution of KOI-6666 b around the hoststar 2MASS J19330703+4124132
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Exoplanet Name : KOI-6666 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.0680 (Rjup) 0.7622 (Rearth)
Mass (Mjup / Me): 0.0012 (Mjup) 0.3739 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0208 (AU) 0.0208 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0031
Orbital Period(Observed/Estimated) 1.12 (Days Obs.) 1.12 (Days Est.)
Surface Gravity (G Earth) 0.6435
Star Radiation at Atmospheric Boundary: 2589402.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1790.4 (K)
Blackbody T 0.3(K) 1681.3 (K)
Blackbody T 0.7(K) 1360.4 (K)
Tidally Locked Blackbody T 0.1(K) 2129.1 (K)
Tidally Locked Blackbody T 0.3(K) 1999.5 (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 J19330703+4124132
Alternate Name : 6128245
Star Distance(LY) : 2972.4
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5918 (K)
Spectral type : G1
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.3
Absolute Magnitude: 4.8
Apparent Magnitude: 14.6
Right Ascension(RA) 293.2793
Declination (DEC) 41.4037
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+J19330703%2B4124132&submit=SIMBAD+search
Open Exoplanet Database Link
KOI-6666 b
KOI-6666 b

  • KOI-6666 b is an exoplanet orbiting the star 2MASS J19330703+4124132, located about 2972.4 light-years (911.3 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star 2MASS J19330703+4124132 has apparent magnitude of 14.6, with absolute magnitude of 4.8.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5918 with its spectral types of G1
  • In this planetary system, the extrasolar planet KOI-6666 b orbits around the star 2MASS J19330703+4124132 every 1.1 days with its orbital distance of 0.02 AU ( 3111635.7 km)
  • (Projected orbit of KOI-6666 b around its host star 2MASS J19330703+4124132)


  • The Star 2MASS J19330703+4124132 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.655 AU ( 97953245.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.905 AU ( 135396983.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.379 AU ( 206315039.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.029 AU ( 303601618.7 km)
  • Radiation at Planetary Boundary of KOI-6666 b : 2589402.57 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J19330703+4124132)



  • Kopparapu Recent Venus for Star 2MASS J19330703+4124132 distance : 0.673 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J19330703+4124132 distance : 0.852 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J19330703+4124132 distance : 0.823 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J19330703+4124132 distance : 0.902 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19330703+4124132 distance : 1.499 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2MASS J19330703+4124132 distance : 1.582 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J19330703+4124132)



  • Original Kopparapu Recent Venus for Star 2MASS J19330703+4124132 distance : 0.676 AU
  • Original Kopparapu Runaway Greenhouse for Star 2MASS J19330703+4124132 distance : 0.875 AU
  • Original Kopparapu Moist Greenhouse for Star 2MASS J19330703+4124132 distance : 0.894 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19330703+4124132 distance : 1.526 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J19330703+4124132 distance : 1.587 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J19330703+4124132)



    (Position in Stellar Map of star 2MASS J19330703+4124132 and its Exoplanet KOI-6666 b)



    (Zoomed position in Stellar Map of star 2MASS J19330703+4124132 and its Exoplanet KOI-6666 b (zoom level 3))

    (Synthetic Spectrum of star 2MASS J19330703+4124132*)
    *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