Imaginary Picture of HATS-48A b

Display orbital revolution of HATS-48A b around the hoststar HATS-48A
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Exoplanet Name : HATS-48A b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.8000 (Rjup) 8.9672 (Rearth)
Mass (Mjup / Me): 0.2430 (Mjup) 77.2589 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0377 (AU) 0.0377 (AU Est.)
Eccentricity : 0.1620
Orbital Period(Yrs) 0.0086
Orbital Period(Observed/Estimated) 3.13 (Days Obs.) 3.13 (Days Est.)
Surface Gravity (G Earth) 0.9608
Star Radiation at Atmospheric Boundary: 188592.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 930.1 (K)
Blackbody T 0.3(K) 873.4 (K)
Blackbody T 0.7(K) 706.7 (K)
Tidally Locked Blackbody T 0.1(K) 1106.1 (K)
Tidally Locked Blackbody T 0.3(K) 1038.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Spectrum
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HATS-48A
Alternate Name :
Star Distance(LY) : 865.6
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 12.0 (GY)
Temperature : 4546 (K)
Spectral type : K4
UV portion[%]: 1.7
Visible portion[%]: 31.9
IR portion[%]: 66.4
Metalicity : 0.2
Absolute Magnitude: 7.2
Apparent Magnitude: 14.3
Right Ascension(RA) 288.6708
Declination (DEC) -59.5794
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-48A b
HATS-48A b

  • HATS-48A b is an exoplanet orbiting the star HATS-48A, located about 865.6 light-years (265.4 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star HATS-48A has apparent magnitude of 14.3, with absolute magnitude of 7.2.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4546 with its spectral types of K4
  • In this planetary system, the extrasolar planet HATS-48A b orbits around the star HATS-48A every 3.1 days with its orbital distance of 0.04 AU ( 5638343.7 km)
  • (Projected orbit of HATS-48A b around its host star HATS-48A)


  • The Star HATS-48A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.320 AU ( 47900989.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.443 AU ( 66211684.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.674 AU ( 100891955.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.992 AU ( 148466931.9 km)
  • Radiation at Planetary Boundary of HATS-48A b : 188592.87 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-48A)



  • Kopparapu Recent Venus for Star HATS-48A distance : 0.353 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-48A distance : 0.447 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-48A distance : 0.432 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-48A distance : 0.474 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-48A distance : 0.826 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-48A distance : 0.871 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-48A)



  • Original Kopparapu Recent Venus for Star HATS-48A distance : 0.348 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-48A distance : 0.461 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-48A distance : 0.461 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-48A distance : 0.840 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-48A distance : 0.873 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-48A)



    (Position in Stellar Map of star HATS-48A and its Exoplanet HATS-48A b)



    (Zoomed position in Stellar Map of star HATS-48A and its Exoplanet HATS-48A b (zoom level 3))

    (Synthetic Spectrum of star HATS-48A*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102