Imaginary Picture of HATS-12 b
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Exoplanet Name : HATS-12 b
Alternate Name :
Radius (Rjup / Re): 0.5140 (Rjup) 5.7614 (Rearth)
Mass (Mjup / Me): 2.3800 (Mjup) 756.6924 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0479 (AU) 0.0479 (AU Est.)
Eccentricity : 0.0850
Orbital Period(Yrs) 0.0086
Orbital Period(Observed/Estimated) 3.14 (Days Obs.) 3.14 (Days Est.)
Star Radiation at Atmospheric Boundary: 4392402.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2043.2 (K)
Blackbody T 0.3(K) 1918.8 (K)
Blackbody T 0.7(K) 1552.5 (K)
Tidally Locked Blackbody T 0.1(K) 2429.8 (K)
Tidally Locked Blackbody T 0.3(K) 2281.9 (K)
Size Class: sub-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-12
Alternate Name :
Star Distance(LY) : 3199.6
Stellar Radius(Rsun) : 2.2 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.5 (Msun Estimated)
Star Age : 2.4 (GY)
Temperature : 6408 (K)
Spectral type : F
Metalicity : -0.1
Absolute Magnitude: 2.8
Apparent Magnitude: 12.8
Right Ascension(RA) 289.2024
Declination (DEC) -19.3558
Hubble Space Telescope Guide Star Catalog (GSC) ID 06304-00396
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HATS-12++&submit=SIMBAD+search
Open Exoplanet Database Link 0
HATS-12 b
HATS-12 b

  • HATS-12 b is an exoplanet orbiting the star HATS-12, located about 3199.6 light-years (981.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HATS-12 has apparent magnitude of 12.8, with absolute magnitude of 2.8.
  • It is 1.5 times more massive and 2.2 times bigger compared with our Sun. The surface temperature is 6408 with its spectral types of F
  • In this planetary system, the extrasolar planet HATS-12 b orbits around the star HATS-12 every 3.1 days with its orbital distance of 0.05 AU ( 7173217.9 km)
  • (Projected orbit of HATS-12 b around its host star HATS-12)


  • The Star HATS-12 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.966 AU ( 294100249.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.717 AU ( 406523401.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.141 AU ( 619451700.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.093 AU ( 911550314.3 km)
  • Radiation at Planetary Boundary of HATS-12 b : 4392402.67 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-12)



  • Kopparapu Recent Venus for Star HATS-12 distance : 1.961 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-12 distance : 2.484 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-12 distance : 2.399 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-12 distance : 2.629 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-12 distance : 4.328 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-12 distance : 4.564 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-12)



  • Original Kopparapu Recent Venus for Star HATS-12 distance : 1.991 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-12 distance : 2.547 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-12 distance : 2.634 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-12 distance : 4.406 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-12 distance : 4.582 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-12)



    (Position in Stellar Map of star HATS-12 and its Exoplanet HATS-12 b)



    (Zoomed position in Stellar Map of star HATS-12 and its Exoplanet HATS-12 b (zoom level 3))