Imaginary Picture of HATS-54 b
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Exoplanet Name : HATS-54 b
Alternate Name :
Radius (Rjup / Re): 1.0670 (Rjup) 11.9600 (Rearth)
Mass (Mjup / Me): 0.7600 (Mjup) 241.6329 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0376 (AU) 0.0376 (AU Est.)
Eccentricity : 0.1260
Orbital Period(Yrs) 0.0070
Orbital Period(Observed/Estimated) 2.54 (Days Obs.) 2.66 (Days Est.)
Star Radiation at Atmospheric Boundary: 1587876.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1584.3 (K)
Blackbody T 0.3(K) 1487.9 (K)
Blackbody T 0.7(K) 1203.8 (K)
Tidally Locked Blackbody T 0.1(K) 1884.1 (K)
Tidally Locked Blackbody T 0.3(K) 1769.4 (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 : HATS-54
Alternate Name :
Star Distance(LY) : 2508.1
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 6.6 (GY)
Temperature : 5702 (K)
Spectral type : G4
Metalicity : 0.4
Absolute Magnitude: 4.5
Apparent Magnitude: 13.9
Right Ascension(RA) 200.6333
Declination (DEC) -44.6889
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HATS-54 b
HATS-54 b

  • HATS-54 b is an exoplanet orbiting the star HATS-54, located about 2508.1 light-years (769.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star HATS-54 has apparent magnitude of 13.9, with absolute magnitude of 4.5.
  • It is 1.0 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5702 with its spectral types of G4
  • In this planetary system, the extrasolar planet HATS-54 b orbits around the star HATS-54 every 2.5 days with its orbital distance of 0.04 AU ( 5629367.9 km)
  • (Projected orbit of HATS-54 b around its host star HATS-54)


  • The Star HATS-54 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.928 AU ( 138770870.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.282 AU ( 191817608.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.954 AU ( 292287586.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.875 AU ( 430113987.5 km)
  • Radiation at Planetary Boundary of HATS-54 b : 1587876.70 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-54)



  • Kopparapu Recent Venus for Star HATS-54 distance : 0.966 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-54 distance : 1.223 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-54 distance : 1.181 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-54 distance : 1.295 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-54 distance : 2.164 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-54 distance : 2.283 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-54)



  • Original Kopparapu Recent Venus for Star HATS-54 distance : 0.966 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-54 distance : 1.257 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-54 distance : 1.278 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-54 distance : 2.202 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-54 distance : 2.290 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-54)



    (Position in Stellar Map of star HATS-54 and its Exoplanet HATS-54 b)



    (Zoomed position in Stellar Map of star HATS-54 and its Exoplanet HATS-54 b (zoom level 3))