Imaginary Picture of HD 4747 b

Display orbital revolution of HD 4747 b around the hoststar HD 4747
/
Exoplanet Name : HD 4747 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 66.6000 (Mjup) 21174.6708 (Mearth)
Semi Major Axis / Orbital Distance Calculated 16.4000 (AU) 16.4000 (AU Est.)
Eccentricity : 0.7340
Orbital Period(Yrs) 33.0997
Orbital Period(Observed/Estimated) 12090.00 (Days Obs.) 26788.54 (Days Est.)
Star Radiation at Atmospheric Boundary: 2.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 55.0 (K)
Blackbody T 0.3(K) 51.7 (K)
Blackbody T 0.7(K) 41.8 (K)
Tidally Locked Blackbody T 0.1(K) 65.5 (K)
Tidally Locked Blackbody T 0.3(K) 61.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 4747
Alternate Name :
Star Distance(LY) : 61.0
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 4.0 (Msun Estimated)
Star Age : 3.3 (GY)
Temperature : 5340 (K)
Spectral type : G9V
Metalicity : -0.2
Absolute Magnitude: 5.8
Apparent Magnitude: 7.2
Right Ascension(RA) 12.3615
Declination (DEC) -23.2125
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 http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+4747+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 4747 b
HD 4747 b

  • HD 4747 b is an exoplanet orbiting the star HD 4747, located about 61.0 light-years (18.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 4747 has apparent magnitude of 7.2, with absolute magnitude of 5.8.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5340 with its spectral types of G9V
  • In this planetary system, the extrasolar planet HD 4747 b orbits around the star HD 4747 every 12090.0 days with its orbital distance of 16.40 AU ( 2453405079.5 km)
  • (Projected orbit of HD 4747 b around its host star HD 4747)


  • The Star HD 4747 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.488 AU ( 73007540.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.675 AU ( 100915500.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.028 AU ( 153772889.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.513 AU ( 226283543.3 km)
  • Radiation at Planetary Boundary of HD 4747 b : 2.31 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 4747)



  • Kopparapu Recent Venus for Star HD 4747 distance : 0.519 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 4747 distance : 0.657 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 4747 distance : 0.634 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 4747 distance : 0.696 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4747 distance : 1.176 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 4747 distance : 1.240 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 4747)



  • Original Kopparapu Recent Venus for Star HD 4747 distance : 0.515 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 4747 distance : 0.676 AU
  • Original Kopparapu Moist Greenhouse for Star HD 4747 distance : 0.682 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4747 distance : 1.196 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 4747 distance : 1.244 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 4747)



    (Position in Stellar Map of star HD 4747 and its Exoplanet HD 4747 b)



    (Zoomed position in Stellar Map of star HD 4747 and its Exoplanet HD 4747 b (zoom level 3))