Imaginary Picture of BD+29 1539 b

Display orbital revolution of BD+29 1539 b around the hoststar BD+29 1539
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Exoplanet Name : BD+29 1539 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 59.7000 (Mjup) 18980.8986 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.6070 (AU) 0.6070 (AU Est.)
Eccentricity : 0.2749
Orbital Period(Yrs) 0.4815
Orbital Period(Observed/Estimated) 175.87 (Days Obs.) 178.16 (Days Est.)
Surface Gravity (G Earth) 183.3049
Star Radiation at Atmospheric Boundary: 2501.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 315.6 (K)
Blackbody T 0.3(K) 296.4 (K)
Blackbody T 0.7(K) 239.8 (K)
Tidally Locked Blackbody T 0.1(K) 375.4 (K)
Tidally Locked Blackbody T 0.3(K) 352.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : BD+29 1539
Alternate Name :
Star Distance(LY) : 203.3
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5412 (K)
Spectral type : G6V
UV portion[%]: 6.5
Visible portion[%]: 42.5
IR portion[%]: 51.0
Metalicity : 0.3
Absolute Magnitude: 4.0
Apparent Magnitude: 7.9
Right Ascension(RA) 112.5931
Declination (DEC) 29.3807
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
BD+29 1539 b
BD+29 1539 b

  • BD+29 1539 b is an exoplanet orbiting the star BD+29 1539, located about 203.3 light-years (62.3 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star BD+29 1539 has apparent magnitude of 7.9, with absolute magnitude of 4.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5412 with its spectral types of G6V
  • In this planetary system, the extrasolar planet BD+29 1539 b orbits around the star BD+29 1539 every 175.9 days with its orbital distance of 0.61 AU ( 90805907.5 km)
  • (Projected orbit of BD+29 1539 b around its host star BD+29 1539)


  • The Star BD+29 1539 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.594 AU ( 88848384.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.821 AU ( 122811686.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.251 AU ( 187137832.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.841 AU ( 275381518.2 km)
  • Radiation at Planetary Boundary of BD+29 1539 b : 2501.56 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star BD+29 1539)



  • Kopparapu Recent Venus for Star BD+29 1539 distance : 0.629 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star BD+29 1539 distance : 0.796 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star BD+29 1539 distance : 0.769 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star BD+29 1539 distance : 0.844 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star BD+29 1539 distance : 1.422 AU
  • Kopparapu Outer Boundary for Early Mars for Star BD+29 1539 distance : 1.499 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star BD+29 1539)



  • Original Kopparapu Recent Venus for Star BD+29 1539 distance : 0.626 AU
  • Original Kopparapu Runaway Greenhouse for Star BD+29 1539 distance : 0.819 AU
  • Original Kopparapu Moist Greenhouse for Star BD+29 1539 distance : 0.828 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star BD+29 1539 distance : 1.446 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star BD+29 1539 distance : 1.504 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star BD+29 1539)



    (Position in Stellar Map of star BD+29 1539 and its Exoplanet BD+29 1539 b)



    (Zoomed position in Stellar Map of star BD+29 1539 and its Exoplanet BD+29 1539 b (zoom level 3))

    (Synthetic Spectrum of star BD+29 1539*)
    *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