Imaginary Picture of HD 33283 b

Display orbital revolution of HD 33283 b around the hoststar HD 33283
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Exoplanet Name : HD 33283 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9900 (Rjup) 11.0969 (Rearth)
Mass (Mjup / Me): 0.3300 (Mjup) 104.9195 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1680 (AU) 0.1680 (AU Est.)
Eccentricity : 0.4580
Orbital Period(Yrs) 0.0498
Orbital Period(Observed/Estimated) 18.18 (Days Obs.) 22.59 (Days Est.)
Surface Gravity (G Earth) 0.8520
Star Radiation at Atmospheric Boundary: 80817.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 752.5 (K)
Blackbody T 0.3(K) 706.7 (K)
Blackbody T 0.7(K) 571.8 (K)
Tidally Locked Blackbody T 0.1(K) 894.9 (K)
Tidally Locked Blackbody T 0.3(K) 840.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection : Theoretical
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 33283
Alternate Name :
Star Distance(LY) : 288.1
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.9 (Msun Estimated)
Star Age : 3.2 (GY)
Temperature : 5995 (K)
Spectral type : G3V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.4
Absolute Magnitude: 3.3
Apparent Magnitude: 8.1
Right Ascension(RA) 77.0042
Declination (DEC) -26.7972
Hubble Space Telescope Guide Star Catalog (GSC) ID 06481-01002
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+33283+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2033283%20b/
HD 33283 b
HD 33283 b

  • HD 33283 b is an exoplanet orbiting the star HD 33283, located about 288.1 light-years (88.3 pc) away from Solar System. Its discovery was publicly announced on 2006.
  • The host star HD 33283 has apparent magnitude of 8.1, with absolute magnitude of 3.3.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5995 with its spectral types of G3V
  • In this planetary system, the extrasolar planet HD 33283 b orbits around the star HD 33283 every 18.2 days with its orbital distance of 0.17 AU ( 25132442.3 km)
  • (Projected orbit of HD 33283 b around its host star HD 33283)


  • The Star HD 33283 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.934 AU ( 139771212.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.291 AU ( 193200342.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.968 AU ( 294394567.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.896 AU ( 433214501.9 km)
  • Radiation at Planetary Boundary of HD 33283 b : 80817.51 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 33283)



  • Kopparapu Recent Venus for Star HD 33283 distance : 0.956 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 33283 distance : 1.210 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 33283 distance : 1.169 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 33283 distance : 1.281 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 33283 distance : 2.126 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 33283 distance : 2.242 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 33283)



  • Original Kopparapu Recent Venus for Star HD 33283 distance : 0.961 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 33283 distance : 1.243 AU
  • Original Kopparapu Moist Greenhouse for Star HD 33283 distance : 1.272 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 33283 distance : 2.164 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 33283 distance : 2.250 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 33283)



    (Position in Stellar Map of star HD 33283 and its Exoplanet HD 33283 b)



    (Zoomed position in Stellar Map of star HD 33283 and its Exoplanet HD 33283 b (zoom level 3))

    (Synthetic Spectrum of star HD 33283*)
    *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