Imaginary Picture of HD 155233 b

Display orbital revolution of HD 155233 b around the hoststar HD 155233
/
Exoplanet Name : HD 155233 b
Alternate Name : HIP 84056
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.6000 (Mjup) 826.6388 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.0000 (AU) 2.0000 (AU Est.)
Eccentricity : 0.0400
Orbital Period(Yrs) 2.2417
Orbital Period(Observed/Estimated) 818.80 (Days Obs.) 843.51 (Days Est.)
Surface Gravity (G Earth) 7.9831
Star Radiation at Atmospheric Boundary: 4223.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 359.8 (K)
Blackbody T 0.3(K) 337.9 (K)
Blackbody T 0.7(K) 273.4 (K)
Tidally Locked Blackbody T 0.1(K) 427.9 (K)
Tidally Locked Blackbody T 0.3(K) 401.8 (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 155233
Alternate Name :
Star Distance(LY) : 245.0
Stellar Radius(Rsun) : 5.0 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.6 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4845 (K)
Spectral type : K1III
UV portion[%]: 2.6
Visible portion[%]: 35.7
IR portion[%]: 61.7
Metalicity : 0.1
Absolute Magnitude: 2.4
Apparent Magnitude: 6.8
Right Ascension(RA) 257.7682
Declination (DEC) -20.6544
Hubble Space Telescope Guide Star Catalog (GSC) ID 06244-00136
Discovered by
Discovery Paper - Authors "R.A. Wittenmyer, R.P. Butler, L. Wang, C. Bergmann, G.S. Salter, C.G. Tinney, John Asher Johnson"
Discovery Paper - Title The Pan-Pacific Planet Search III: Five companions orbiting giant stars
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+155233+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20155233%20b/
HD 155233 b
HD 155233 b

  • HD 155233 b is an exoplanet orbiting the star HD 155233, located about 245.0 light-years (75.1 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star HD 155233 has apparent magnitude of 6.8, with absolute magnitude of 2.4.
  • It is 1.5 times more massive and 5.0 times bigger compared with our Sun. The surface temperature is 4845 with its spectral types of K1III
  • In this planetary system, the extrasolar planet HD 155233 b orbits around the star HD 155233 every 818.8 days with its orbital distance of 2.00 AU ( 299195741.4 km)
  • (Projected orbit of HD 155233 b around its host star HD 155233)


  • The Star HD 155233 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.543 AU ( 380378253.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.515 AU ( 525782150.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 5.356 AU ( 801175642.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 7.881 AU ( 1178965054.5 km)
  • Radiation at Planetary Boundary of HD 155233 b : 4223.38 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 155233)



  • Kopparapu Recent Venus for Star HD 155233 distance : 2.770 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 155233 distance : 3.507 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 155233 distance : 3.388 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 155233 distance : 3.718 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 155233 distance : 6.397 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 155233 distance : 6.748 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 155233)



  • Original Kopparapu Recent Venus for Star HD 155233 distance : 2.737 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 155233 distance : 3.616 AU
  • Original Kopparapu Moist Greenhouse for Star HD 155233 distance : 3.622 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 155233 distance : 6.504 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 155233 distance : 6.764 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 155233)



    (Position in Stellar Map of star HD 155233 and its Exoplanet HD 155233 b)



    (Zoomed position in Stellar Map of star HD 155233 and its Exoplanet HD 155233 b (zoom level 3))

    (Synthetic Spectrum of star HD 155233*)
    *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