Imaginary Picture of AB Aur b

Display orbital revolution of AB Aur b around the hoststar AB Aur
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Exoplanet Name : AB Aur b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 9.0000 (Mjup) 2861.4420 (Mearth)
Semi Major Axis / Orbital Distance Calculated 93.9000 (AU) 93.9000 (AU Est.)
Eccentricity : 0.4000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 214527.51 (Days Est.)
Surface Gravity (G Earth) 27.6339
Star Radiation at Atmospheric Boundary: 3.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 60.6 (K)
Blackbody T 0.3(K) 56.9 (K)
Blackbody T 0.7(K) 46.1 (K)
Tidally Locked Blackbody T 0.1(K) 72.1 (K)
Tidally Locked Blackbody T 0.3(K) 67.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : AB Aur
Alternate Name :
Star Distance(LY) : 469.7
Stellar Radius(Rsun) : 1.7 (Rsun Estimated)
Stellar Mass(Msun) : 2.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 9600 (K)
Spectral type : A0V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 1.3
Apparent Magnitude: 7.1
Right Ascension(RA) 73.9417
Declination (DEC) 30.5511
Hubble Space Telescope Guide Star Catalog (GSC) ID 02387-00812
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.cds.unistra.fr/simbad/sim-basic?Ident=AB+Aur&submit=SIMBAD+search
Open Exoplanet Database Link
AB Aur b
AB Aur b

  • AB Aur b is an exoplanet orbiting the star AB Aur, located about 469.7 light-years (144.0 pc) away from Solar System. Its discovery was publicly announced on 2008.
  • The host star AB Aur has apparent magnitude of 7.1, with absolute magnitude of 1.3.
  • It is 2.4 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 9600 with its spectral types of A0V
  • (Projected orbit of AB Aur b around its host star AB Aur)


  • The Star AB Aur 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 3.388 AU ( 506814088.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.683 AU ( 700549516.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 7.136 AU ( 1067482431.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 10.500 AU ( 1570847160.9 km)
  • Radiation at Planetary Boundary of AB Aur b : 3.40 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star AB Aur)



  • Kopparapu Recent Venus for Star AB Aur distance : 3.744 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star AB Aur distance : 4.745 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star AB Aur distance : 4.587 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star AB Aur distance : 4.997 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star AB Aur distance : 8.290 AU
  • Kopparapu Outer Boundary for Early Mars for Star AB Aur distance : 8.733 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star AB Aur)



  • Original Kopparapu Recent Venus for Star AB Aur distance : 3.597 AU
  • Original Kopparapu Runaway Greenhouse for Star AB Aur distance : 4.805 AU
  • Original Kopparapu Moist Greenhouse for Star AB Aur distance : 4.759 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star AB Aur distance : 8.375 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star AB Aur distance : 8.709 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star AB Aur)



    (Position in Stellar Map of star AB Aur and its Exoplanet AB Aur b)



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

    (Synthetic Spectrum of star AB Aur*)
    *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