Imaginary Picture of HD 46588 b

Display orbital revolution of HD 46588 b around the hoststar HD 46588
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Exoplanet Name : HD 46588 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.2500 (Mjup) 79.4845 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.7407 (AU Est.)
Eccentricity : 0.4200
Orbital Period(Yrs) 0.6105
Orbital Period(Observed/Estimated) 223.00 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7676
Star Radiation at Atmospheric Boundary: 9546.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 441.2 (K)
Blackbody T 0.3(K) 414.3 (K)
Blackbody T 0.7(K) 335.2 (K)
Tidally Locked Blackbody T 0.1(K) 524.6 (K)
Tidally Locked Blackbody T 0.3(K) 492.7 (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 46588
Alternate Name :
Star Distance(LY) : 69.5
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6200 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 3.8
Apparent Magnitude: 5.4
Right Ascension(RA) 101.5583
Declination (DEC) 79.5647
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HD 46588 b
HD 46588 b

  • HD 46588 b is an exoplanet orbiting the star HD 46588, located about 69.5 light-years (21.3 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star HD 46588 has apparent magnitude of 5.4, with absolute magnitude of 3.8.
  • It is 1.1 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 6200 with its spectral types of F8
  • In this planetary system, the extrasolar planet HD 46588 b orbits around the star HD 46588 every 223.0 days with its orbital distance of 0.74 AU ( 110801082.6 km)
  • (Projected orbit of HD 46588 b around its host star HD 46588)


  • The Star HD 46588 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.416 AU ( 211782666.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.957 AU ( 292738991.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.982 AU ( 446069439.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.388 AU ( 656410721.0 km)
  • Radiation at Planetary Boundary of HD 46588 b : 9546.24 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 46588)



  • Kopparapu Recent Venus for Star HD 46588 distance : 1.430 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 46588 distance : 1.811 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 46588 distance : 1.749 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 46588 distance : 1.917 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 46588 distance : 3.167 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 46588 distance : 3.340 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 46588)



  • Original Kopparapu Recent Venus for Star HD 46588 distance : 1.445 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 46588 distance : 1.858 AU
  • Original Kopparapu Moist Greenhouse for Star HD 46588 distance : 1.912 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 46588 distance : 3.224 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 46588 distance : 3.353 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 46588)



    (Position in Stellar Map of star HD 46588 and its Exoplanet HD 46588 b)



    (Zoomed position in Stellar Map of star HD 46588 and its Exoplanet HD 46588 b (zoom level 3))

    (Synthetic Spectrum of star HD 46588*)
    *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