Imaginary Picture of HATS-47 b

Display orbital revolution of HATS-47 b around the hoststar HATS-47
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Exoplanet Name : HATS-47 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.1170 (Rjup) 12.5205 (Rearth)
Mass (Mjup / Me): 0.3690 (Mjup) 117.3191 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0427 (AU) 0.0427 (AU Est.)
Eccentricity : 0.0880
Orbital Period(Yrs) 0.0107
Orbital Period(Observed/Estimated) 3.92 (Days Obs.) 3.92 (Days Est.)
Surface Gravity (G Earth) 0.7484
Star Radiation at Atmospheric Boundary: 120161.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 831.0 (K)
Blackbody T 0.3(K) 780.4 (K)
Blackbody T 0.7(K) 631.4 (K)
Tidally Locked Blackbody T 0.1(K) 988.2 (K)
Tidally Locked Blackbody T 0.3(K) 928.0 (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-47
Alternate Name :
Star Distance(LY) : 984.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 8.1 (GY)
Temperature : 4512 (K)
Spectral type : K4
UV portion[%]: 1.6
Visible portion[%]: 31.3
IR portion[%]: 67.1
Metalicity : -0.1
Absolute Magnitude: 7.4
Apparent Magnitude: 14.8
Right Ascension(RA) 287.4833
Declination (DEC) -49.6650
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-47 b
HATS-47 b

  • HATS-47 b is an exoplanet orbiting the star HATS-47, located about 984.0 light-years (301.7 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star HATS-47 has apparent magnitude of 14.8, with absolute magnitude of 7.4.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4512 with its spectral types of K4
  • In this planetary system, the extrasolar planet HATS-47 b orbits around the star HATS-47 every 3.9 days with its orbital distance of 0.04 AU ( 6386333.1 km)
  • (Projected orbit of HATS-47 b around its host star HATS-47)


  • The Star HATS-47 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.289 AU ( 43307674.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.400 AU ( 59862524.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.610 AU ( 91217239.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.897 AU ( 134230163.6 km)
  • Radiation at Planetary Boundary of HATS-47 b : 120161.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-47)



  • Kopparapu Recent Venus for Star HATS-47 distance : 0.320 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-47 distance : 0.405 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-47 distance : 0.391 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-47 distance : 0.429 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-47 distance : 0.749 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-47 distance : 0.790 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-47)



  • Original Kopparapu Recent Venus for Star HATS-47 distance : 0.315 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-47 distance : 0.418 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-47 distance : 0.417 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-47 distance : 0.761 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-47 distance : 0.792 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-47)



    (Position in Stellar Map of star HATS-47 and its Exoplanet HATS-47 b)



    (Zoomed position in Stellar Map of star HATS-47 and its Exoplanet HATS-47 b (zoom level 3))

    (Synthetic Spectrum of star HATS-47*)
    *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