Imaginary Picture of HD 50554 b
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Exoplanet Name : HD 50554 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.1600 (Mjup) 1640.5601 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.4100 (AU) 2.4100 (AU Est.)
Eccentricity : 0.5000
Orbital Period(Yrs) 3.5399
Orbital Period(Observed/Estimated) 1293.00 (Days Obs.) 1339.98 (Days Est.)
Star Radiation at Atmospheric Boundary: 315.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 188.1 (K)
Blackbody T 0.3(K) 176.7 (K)
Blackbody T 0.7(K) 142.9 (K)
Tidally Locked Blackbody T 0.1(K) 223.7 (K)
Tidally Locked Blackbody T 0.3(K) 210.1 (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 50554
Alternate Name :
Star Distance(LY) : 101.2
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.6 (GY)
Temperature : 5902 (K)
Spectral type : F8
Metalicity : -0.1
Absolute Magnitude: 4.4
Apparent Magnitude: 6.9
Right Ascension(RA) 103.6784
Declination (DEC) 24.2456
Hubble Space Telescope Guide Star Catalog (GSC) ID 01894-01961
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+50554+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 50554 b
HD 50554 b

  • HD 50554 b is an exoplanet orbiting the star HD 50554, located about 101.2 light-years (31.0 pc) away from Solar System. Its discovery was publicly announced on 2002.
  • The host star HD 50554 has apparent magnitude of 6.9, with absolute magnitude of 4.4.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5902 with its spectral types of F8
  • In this planetary system, the extrasolar planet HD 50554 b orbits around the star HD 50554 every 1293.0 days with its orbital distance of 2.41 AU ( 360530868.4 km)
  • (Projected orbit of HD 50554 b around its host star HD 50554)


  • The Star HD 50554 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.838 AU ( 125308202.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.158 AU ( 173208683.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.764 AU ( 263931702.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.596 AU ( 388387062.2 km)
  • Radiation at Planetary Boundary of HD 50554 b : 315.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 50554)



  • Kopparapu Recent Venus for Star HD 50554 distance : 0.862 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 50554 distance : 1.091 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 50554 distance : 1.054 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 50554 distance : 1.155 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 50554 distance : 1.921 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 50554 distance : 2.026 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 50554)



  • Original Kopparapu Recent Venus for Star HD 50554 distance : 0.865 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 50554 distance : 1.121 AU
  • Original Kopparapu Moist Greenhouse for Star HD 50554 distance : 1.145 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 50554 distance : 1.955 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 50554 distance : 2.033 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 50554)



    (Position in Stellar Map of star HD 50554 and its Exoplanet HD 50554 b)



    (Zoomed position in Stellar Map of star HD 50554 and its Exoplanet HD 50554 b (zoom level 3))