Imaginary Picture of HAT-P-47 b

Display orbital revolution of HAT-P-47 b around the hoststar HAT-P-47
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Exoplanet Name : HAT-P-47 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.3130 (Rjup) 14.7174 (Rearth)
Mass (Mjup / Me): 0.2060 (Mjup) 65.4952 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0615 (AU) 0.0615 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0130
Orbital Period(Observed/Estimated) 4.73 (Days Obs.) 4.73 (Days Est.)
Surface Gravity (G Earth) 0.3024
Star Radiation at Atmospheric Boundary: 1502300.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1562.5 (K)
Blackbody T 0.3(K) 1467.4 (K)
Blackbody T 0.7(K) 1187.3 (K)
Tidally Locked Blackbody T 0.1(K) 1858.2 (K)
Tidally Locked Blackbody T 0.3(K) 1745.0 (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 : HAT-P-47
Alternate Name :
Star Distance(LY) : 874.1
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 1.5 (GY)
Temperature : 6703 (K)
Spectral type : F5
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 3.5
Apparent Magnitude: 10.6
Right Ascension(RA) 38.3083
Declination (DEC) 30.3606
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-47&submit=SIMBAD+search
Open Exoplanet Database Link
HAT-P-47 b
HAT-P-47 b

  • HAT-P-47 b is an exoplanet orbiting the star HAT-P-47, located about 874.1 light-years (268.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HAT-P-47 has apparent magnitude of 10.6, with absolute magnitude of 3.5.
  • It is 1.4 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6703 with its spectral types of F5
  • In this planetary system, the extrasolar planet HAT-P-47 b orbits around the star HAT-P-47 every 4.7 days with its orbital distance of 0.06 AU ( 9200269.0 km)
  • (Projected orbit of HAT-P-47 b around its host star HAT-P-47)


  • The Star HAT-P-47 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.475 AU ( 220601867.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.038 AU ( 304929430.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.106 AU ( 464644971.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.571 AU ( 683745430.5 km)
  • Radiation at Planetary Boundary of HAT-P-47 b : 1502300.19 W/m2

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



  • Kopparapu Recent Venus for Star HAT-P-47 distance : 1.447 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-47 distance : 1.832 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-47 distance : 1.769 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-47 distance : 1.938 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-47 distance : 3.179 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-47 distance : 3.352 AU

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



  • Original Kopparapu Recent Venus for Star HAT-P-47 distance : 1.478 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-47 distance : 1.877 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-47 distance : 1.956 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-47 distance : 3.236 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-47 distance : 3.366 AU

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



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



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

    (Synthetic Spectrum of star HAT-P-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