Imaginary Picture of HD 148427 b

Display orbital revolution of HD 148427 b around the hoststar HD 148427
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Exoplanet Name : HD 148427 b
Alternate Name :
Status : Controversial
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.9600 (Mjup) 305.2205 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.9300 (AU) 0.9300 (AU Est.)
Eccentricity : 0.1600
Orbital Period(Yrs) 0.9076
Orbital Period(Observed/Estimated) 331.50 (Days Obs.) 272.04 (Days Est.)
Surface Gravity (G Earth) 2.9476
Star Radiation at Atmospheric Boundary: 9576.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 441.5 (K)
Blackbody T 0.3(K) 414.6 (K)
Blackbody T 0.7(K) 335.5 (K)
Tidally Locked Blackbody T 0.1(K) 525.1 (K)
Tidally Locked Blackbody T 0.3(K) 493.1 (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 148427
Alternate Name :
Star Distance(LY) : 230.2
Stellar Radius(Rsun) : 3.2 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 5052 (K)
Spectral type : K0IV
UV portion[%]: 3.6
Visible portion[%]: 37.7
IR portion[%]: 58.7
Metalicity : 0.2
Absolute Magnitude: 2.6
Apparent Magnitude: 6.9
Right Ascension(RA) 247.1173
Declination (DEC) -13.3997
Hubble Space Telescope Guide Star Catalog (GSC) ID 05639-00555
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.harvard.edu/simbad/sim-basic?Ident=HD+148427+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20148427%20b/
HD 148427 b
HD 148427 b

  • HD 148427 b is an exoplanet orbiting the star HD 148427, located about 230.2 light-years (70.6 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HD 148427 has apparent magnitude of 6.9, with absolute magnitude of 2.6.
  • It is 1.4 times more massive and 3.2 times bigger compared with our Sun. The surface temperature is 5052 with its spectral types of K0IV
  • In this planetary system, the extrasolar planet HD 148427 b orbits around the star HD 148427 every 331.5 days with its orbital distance of 0.93 AU ( 139126019.8 km)
  • (Projected orbit of HD 148427 b around its host star HD 148427)


  • The Star HD 148427 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.780 AU ( 266342620.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.461 AU ( 368155104.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.750 AU ( 560986907.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.518 AU ( 825516809.1 km)
  • Radiation at Planetary Boundary of HD 148427 b : 9576.44 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 148427)



  • Kopparapu Recent Venus for Star HD 148427 distance : 1.921 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 148427 distance : 2.432 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 148427 distance : 2.349 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 148427 distance : 2.578 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 148427 distance : 4.400 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 148427 distance : 4.641 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 148427)



  • Original Kopparapu Recent Venus for Star HD 148427 distance : 1.902 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 148427 distance : 2.506 AU
  • Original Kopparapu Moist Greenhouse for Star HD 148427 distance : 2.517 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 148427 distance : 4.474 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 148427 distance : 4.652 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 148427)



    (Position in Stellar Map of star HD 148427 and its Exoplanet HD 148427 b)



    (Zoomed position in Stellar Map of star HD 148427 and its Exoplanet HD 148427 b (zoom level 3))

    (Synthetic Spectrum of star HD 148427*)
    *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