Imaginary Picture of HATS-66 b
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Exoplanet Name : HATS-66 b
Alternate Name :
Radius (Rjup / Re): 1.5000 (Rjup) 16.8135 (Rearth)
Mass (Mjup / Me): 5.5000 (Mjup) 1748.6590 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0471 (AU) 0.0471 (AU Est.)
Eccentricity : 0.0080
Orbital Period(Yrs) 0.0086
Orbital Period(Observed/Estimated) 3.14 (Days Obs.) 3.15 (Days Est.)
Star Radiation at Atmospheric Boundary: 3608398.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1945.2 (K)
Blackbody T 0.3(K) 1826.8 (K)
Blackbody T 0.7(K) 1478.1 (K)
Tidally Locked Blackbody T 0.1(K) 2313.3 (K)
Tidally Locked Blackbody T 0.3(K) 2172.4 (K)
Size Class: Super-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 : HATS-66
Alternate Name :
Star Distance(LY) : 5029.3
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 2.3 (GY)
Temperature : 6606 (K)
Spectral type : F6
Metalicity : -0.0
Absolute Magnitude: 3.1
Apparent Magnitude: 14.0
Right Ascension(RA) 101.3958
Declination (DEC) -33.8817
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
HATS-66 b
HATS-66 b

  • HATS-66 b is an exoplanet orbiting the star HATS-66, located about 5029.3 light-years (1542.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star HATS-66 has apparent magnitude of 14.0, with absolute magnitude of 3.1.
  • It is 1.4 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 6606 with its spectral types of F6
  • In this planetary system, the extrasolar planet HATS-66 b orbits around the star HATS-66 every 3.1 days with its orbital distance of 0.05 AU ( 7044563.7 km)
  • (Projected orbit of HATS-66 b around its host star HATS-66)


  • The Star HATS-66 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.750 AU ( 261783138.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.419 AU ( 361852709.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.686 AU ( 551383451.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.424 AU ( 811384903.0 km)
  • Radiation at Planetary Boundary of HATS-66 b : 3608398.92 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-66)



  • Kopparapu Recent Venus for Star HATS-66 distance : 1.726 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-66 distance : 2.186 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-66 distance : 2.111 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-66 distance : 2.313 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-66 distance : 3.797 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-66 distance : 4.005 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-66)



  • Original Kopparapu Recent Venus for Star HATS-66 distance : 1.760 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-66 distance : 2.240 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-66 distance : 2.328 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-66 distance : 3.866 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-66 distance : 4.020 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-66)



    (Position in Stellar Map of star HATS-66 and its Exoplanet HATS-66 b)



    (Zoomed position in Stellar Map of star HATS-66 and its Exoplanet HATS-66 b (zoom level 3))