Imaginary Picture of Qatar-6 b
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Exoplanet Name : Qatar-6 b
Alternate Name :
Radius (Rjup / Re): 1.0620 (Rjup) 11.9040 (Rearth)
Mass (Mjup / Me): 0.6680 (Mjup) 212.3826 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0423 (AU) 0.0423 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0096
Orbital Period(Observed/Estimated) 3.51 (Days Obs.) 3.50 (Days Est.)
Star Radiation at Atmospheric Boundary: 232729.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 980.3 (K)
Blackbody T 0.3(K) 920.6 (K)
Blackbody T 0.7(K) 744.9 (K)
Tidally Locked Blackbody T 0.1(K) 1165.8 (K)
Tidally Locked Blackbody T 0.3(K) 1094.8 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Qatar-6
Alternate Name :
Star Distance(LY) : 329.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 1.0 (GY)
Temperature : 5052 (K)
Spectral type : K2V
Metalicity : -0.0
Absolute Magnitude: 6.4
Apparent Magnitude: 11.4
Right Ascension(RA) 222.2083
Declination (DEC) 22.1525
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
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SIMBAD LINK
Open Exoplanet Database Link
Qatar-6 b
Qatar-6 b

  • Qatar-6 b is an exoplanet orbiting the star Qatar-6, located about 329.4 light-years (101.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Qatar-6 has apparent magnitude of 11.4, with absolute magnitude of 6.4.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5052 with its spectral types of K2V
  • In this planetary system, the extrasolar planet Qatar-6 b orbits around the star Qatar-6 every 3.5 days with its orbital distance of 0.04 AU ( 6327989.9 km)
  • (Projected orbit of Qatar-6 b around its host star Qatar-6)


  • The Star Qatar-6 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.399 AU ( 59720301.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.552 AU ( 82549063.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.841 AU ( 125786505.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.237 AU ( 185100352.9 km)
  • Radiation at Planetary Boundary of Qatar-6 b : 232729.72 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Qatar-6)



  • Kopparapu Recent Venus for Star Qatar-6 distance : 0.431 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Qatar-6 distance : 0.545 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Qatar-6 distance : 0.527 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Qatar-6 distance : 0.578 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Qatar-6 distance : 0.986 AU
  • Kopparapu Outer Boundary for Early Mars for Star Qatar-6 distance : 1.041 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Qatar-6)



  • Original Kopparapu Recent Venus for Star Qatar-6 distance : 0.426 AU
  • Original Kopparapu Runaway Greenhouse for Star Qatar-6 distance : 0.562 AU
  • Original Kopparapu Moist Greenhouse for Star Qatar-6 distance : 0.564 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Qatar-6 distance : 1.003 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Qatar-6 distance : 1.043 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Qatar-6)



    (Position in Stellar Map of star Qatar-6 and its Exoplanet Qatar-6 b)



    (Zoomed position in Stellar Map of star Qatar-6 and its Exoplanet Qatar-6 b (zoom level 3))