Imaginary Picture of HATS-23 b
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Exoplanet Name : HATS-23 b
Alternate Name :
Radius (Rjup / Re): 1.8600 (Rjup) 20.8487 (Rearth)
Mass (Mjup / Me): 1.4700 (Mjup) 467.3689 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0340 (AU) 0.0340 (AU Est.)
Eccentricity : 0.1140
Orbital Period(Yrs) 0.0059
Orbital Period(Observed/Estimated) 2.16 (Days Obs.) 2.16 (Days Est.)
Star Radiation at Atmospheric Boundary: 1705153.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1612.8 (K)
Blackbody T 0.3(K) 1514.6 (K)
Blackbody T 0.7(K) 1225.5 (K)
Tidally Locked Blackbody T 0.1(K) 1918.0 (K)
Tidally Locked Blackbody T 0.3(K) 1801.2 (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-23
Alternate Name :
Star Distance(LY) : 2436.4
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.2 (GY)
Temperature : 5780 (K)
Spectral type : G2
Metalicity : 0.3
Absolute Magnitude: 4.5
Apparent Magnitude: 13.9
Right Ascension(RA) 286.3667
Declination (DEC) -50.0675
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link
HATS-23 b
HATS-23 b

  • HATS-23 b is an exoplanet orbiting the star HATS-23, located about 2436.4 light-years (747.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star HATS-23 has apparent magnitude of 13.9, with absolute magnitude of 4.5.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5780 with its spectral types of G2
  • In this planetary system, the extrasolar planet HATS-23 b orbits around the star HATS-23 every 2.2 days with its orbital distance of 0.03 AU ( 5081839.7 km)
  • (Projected orbit of HATS-23 b around its host star HATS-23)


  • The Star HATS-23 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.868 AU ( 129817419.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.199 AU ( 179441599.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.828 AU ( 273429286.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.690 AU ( 402363173.9 km)
  • Radiation at Planetary Boundary of HATS-23 b : 1705153.33 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-23)



  • Kopparapu Recent Venus for Star HATS-23 distance : 0.899 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-23 distance : 1.139 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-23 distance : 1.100 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-23 distance : 1.206 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-23 distance : 2.011 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-23 distance : 2.121 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-23)



  • Original Kopparapu Recent Venus for Star HATS-23 distance : 0.901 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-23 distance : 1.170 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-23 distance : 1.192 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-23 distance : 2.046 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-23 distance : 2.128 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-23)



    (Position in Stellar Map of star HATS-23 and its Exoplanet HATS-23 b)



    (Zoomed position in Stellar Map of star HATS-23 and its Exoplanet HATS-23 b (zoom level 3))