Imaginary Picture of HD 147018 c

Display orbital revolution of HD 147018 c around the hoststar HD 147018
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Exoplanet Name : HD 147018 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.5600 (Mjup) 2085.6733 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.9220 (AU) 1.9220 (AU Est.)
Eccentricity : 0.1330
Orbital Period(Yrs) 2.7597
Orbital Period(Observed/Estimated) 1008.00 (Days Obs.) 1010.84 (Days Est.)
Surface Gravity (G Earth) 20.1420
Star Radiation at Atmospheric Boundary: 227.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 173.4 (K)
Blackbody T 0.3(K) 162.9 (K)
Blackbody T 0.7(K) 131.8 (K)
Tidally Locked Blackbody T 0.1(K) 206.2 (K)
Tidally Locked Blackbody T 0.3(K) 193.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 147018
Alternate Name :
Star Distance(LY) : 131.7
Stellar Radius(Rsun) : 0.9 (Rsun Estimated)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 6.4 (GY)
Temperature : 5441 (K)
Spectral type : G9V
UV portion[%]: 6.6
Visible portion[%]: 42.8
IR portion[%]: 50.6
Metalicity : 0.1
Absolute Magnitude: 5.3
Apparent Magnitude: 8.3
Right Ascension(RA) 245.7500
Declination (DEC) -61.6889
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+147018+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20147018%20c/
HD 147018 c
HD 147018 c

  • HD 147018 c is an exoplanet orbiting the star HD 147018, located about 131.7 light-years (40.4 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HD 147018 has apparent magnitude of 8.3, with absolute magnitude of 5.3.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5441 with its spectral types of G9V
  • In this planetary system, the extrasolar planet HD 147018 c orbits around the star HD 147018 every 1008.0 days with its orbital distance of 1.92 AU ( 287527107.5 km)
  • (Projected orbit of HD 147018 c around its host star HD 147018)


  • The Star HD 147018 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.568 AU ( 84912942.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.785 AU ( 117371876.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.196 AU ( 178848766.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.759 AU ( 263183794.1 km)
  • Radiation at Planetary Boundary of HD 147018 c : 227.89 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 147018)



  • Kopparapu Recent Venus for Star HD 147018 distance : 0.600 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 147018 distance : 0.760 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 147018 distance : 0.734 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 147018 distance : 0.805 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 147018 distance : 1.355 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 147018 distance : 1.429 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 147018)



  • Original Kopparapu Recent Venus for Star HD 147018 distance : 0.597 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 147018 distance : 0.782 AU
  • Original Kopparapu Moist Greenhouse for Star HD 147018 distance : 0.790 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 147018 distance : 1.379 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 147018 distance : 1.434 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 147018)



    (Position in Stellar Map of star HD 147018 and its Exoplanet HD 147018 c)



    (Zoomed position in Stellar Map of star HD 147018 and its Exoplanet HD 147018 c (zoom level 3))

    (Synthetic Spectrum of star HD 147018*)
    *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