Imaginary Picture of HD 29587 b

Display orbital revolution of HD 29587 b around the hoststar HD 29587
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Exoplanet Name : HD 29587 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 55.2000 (Mjup) 17550.1776 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.5970 (AU) 2.5970 (AU Est.)
Eccentricity : 0.7130
Orbital Period(Yrs) 4.0546
Orbital Period(Observed/Estimated) 1481.00 (Days Obs.) 1521.03 (Days Est.)
Surface Gravity (G Earth) 169.4879
Star Radiation at Atmospheric Boundary: 165.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 160.1 (K)
Blackbody T 0.3(K) 150.4 (K)
Blackbody T 0.7(K) 121.7 (K)
Tidally Locked Blackbody T 0.1(K) 190.4 (K)
Tidally Locked Blackbody T 0.3(K) 178.8 (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 29587
Alternate Name :
Star Distance(LY) : 89.7
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 14.7 (GY)
Temperature : 5688 (K)
Spectral type : G3V
UV portion[%]: 7.6
Visible portion[%]: 44.3
IR portion[%]: 48.1
Metalicity : -0.6
Absolute Magnitude: 5.1
Apparent Magnitude: 7.3
Right Ascension(RA) 70.4013
Declination (DEC) 42.1185
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 29587 b
HD 29587 b

  • HD 29587 b is an exoplanet orbiting the star HD 29587, located about 89.7 light-years (27.5 pc) away from Solar System. Its discovery was publicly announced on 1996.
  • The host star HD 29587 has apparent magnitude of 7.3, with absolute magnitude of 5.1.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5688 with its spectral types of G3V
  • In this planetary system, the extrasolar planet HD 29587 b orbits around the star HD 29587 every 1481.0 days with its orbital distance of 2.60 AU ( 388505670.2 km)
  • (Projected orbit of HD 29587 b around its host star HD 29587)


  • The Star HD 29587 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.654 AU ( 97827044.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.904 AU ( 135222540.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.377 AU ( 206049226.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.027 AU ( 303210463.6 km)
  • Radiation at Planetary Boundary of HD 29587 b : 165.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 29587)



  • Kopparapu Recent Venus for Star HD 29587 distance : 0.681 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 29587 distance : 0.863 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 29587 distance : 0.833 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 29587 distance : 0.914 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 29587 distance : 1.528 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 29587 distance : 1.611 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 29587)



  • Original Kopparapu Recent Venus for Star HD 29587 distance : 0.681 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 29587 distance : 0.887 AU
  • Original Kopparapu Moist Greenhouse for Star HD 29587 distance : 0.901 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 29587 distance : 1.554 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 29587 distance : 1.616 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 29587)



    (Position in Stellar Map of star HD 29587 and its Exoplanet HD 29587 b)



    (Zoomed position in Stellar Map of star HD 29587 and its Exoplanet HD 29587 b (zoom level 3))

    (Synthetic Spectrum of star HD 29587*)
    *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