Imaginary Picture of BD-00 4475 b

Display orbital revolution of BD-00 4475 b around the hoststar BD-00 4475
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Exoplanet Name : BD-00 4475 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 23.0500 (Mjup) 7328.4709 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.4800 (AU) 1.4800 (AU Est.)
Eccentricity : 0.3900
Orbital Period(Yrs) 1.9800
Orbital Period(Observed/Estimated) 723.20 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 70.7735
Star Radiation at Atmospheric Boundary: 748.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 233.5 (K)
Blackbody T 0.3(K) 219.3 (K)
Blackbody T 0.7(K) 177.4 (K)
Tidally Locked Blackbody T 0.1(K) 277.6 (K)
Tidally Locked Blackbody T 0.3(K) 260.7 (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-00 4475
Alternate Name :
Star Distance(LY) : 139.2
Stellar Radius(Rsun) : 1.0 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6050 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 5.8
Apparent Magnitude: 9.0
Right Ascension(RA) 347.7125
Declination (DEC) 0.4097
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=BD-00+4475&submit=SIMBAD+search
Open Exoplanet Database Link
BD-00 4475 b
BD-00 4475 b

  • BD-00 4475 b is an exoplanet orbiting the star BD-00 4475, located about 139.2 light-years (42.7 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star BD-00 4475 has apparent magnitude of 9.0, with absolute magnitude of 5.8.
  • In this planetary system, the extrasolar planet BD-00 4475 b orbits around the star BD-00 4475 every 723.2 days with its orbital distance of 1.48 AU ( 221404848.6 km)
  • (Projected orbit of BD-00 4475 b around its host star BD-00 4475)


  • The Star BD-00 4475 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.792 AU ( 118523320.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.095 AU ( 163830203.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.669 AU ( 249640973.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.456 AU ( 367357629.0 km)
  • Radiation at Planetary Boundary of BD-00 4475 b : 748.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star BD-00 4475)



  • Kopparapu Recent Venus for Star BD-00 4475 distance : 0.808 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star BD-00 4475 distance : 1.023 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star BD-00 4475 distance : 0.988 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star BD-00 4475 distance : 1.083 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star BD-00 4475 distance : 1.794 AU
  • Kopparapu Outer Boundary for Early Mars for Star BD-00 4475 distance : 1.893 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star BD-00 4475)



  • Original Kopparapu Recent Venus for Star BD-00 4475 distance : 0.813 AU
  • Original Kopparapu Runaway Greenhouse for Star BD-00 4475 distance : 1.050 AU
  • Original Kopparapu Moist Greenhouse for Star BD-00 4475 distance : 1.076 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star BD-00 4475 distance : 1.826 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star BD-00 4475 distance : 1.899 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star BD-00 4475)



    (Position in Stellar Map of star BD-00 4475 and its Exoplanet BD-00 4475 b)



    (Zoomed position in Stellar Map of star BD-00 4475 and its Exoplanet BD-00 4475 b (zoom level 3))

    (Synthetic Spectrum of star BD-00 4475*)
    *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