Imaginary Picture of HD 149143 b

Display orbital revolution of HD 149143 b around the hoststar HD 149143
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Exoplanet Name : HD 149143 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0500 (Rjup) 11.7695 (Rearth)
Mass (Mjup / Me): 1.3300 (Mjup) 422.8575 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0520 (AU) 0.0520 (AU Est.)
Eccentricity : 0.0123
Orbital Period(Yrs) 0.0111
Orbital Period(Observed/Estimated) 4.07 (Days Obs.) 4.13 (Days Est.)
Surface Gravity (G Earth) 3.0527
Star Radiation at Atmospheric Boundary: 557180.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1219.4 (K)
Blackbody T 0.3(K) 1145.1 (K)
Blackbody T 0.7(K) 926.5 (K)
Tidally Locked Blackbody T 0.1(K) 1450.1 (K)
Tidally Locked Blackbody T 0.3(K) 1361.8 (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 149143
Alternate Name :
Star Distance(LY) : 242.5
Stellar Radius(Rsun) : 1.1 (Rsun Estimated)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 7.6 (GY)
Temperature : 5730 (K)
Spectral type : G0 IV
UV portion[%]: 7.7
Visible portion[%]: 44.5
IR portion[%]: 47.7
Metalicity : 0.3
Absolute Magnitude: 3.5
Apparent Magnitude: 7.9
Right Ascension(RA) 248.2127
Declination (DEC) 2.0847
Hubble Space Telescope Guide Star Catalog (GSC) ID 00386-00086
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+149143+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20149143%20b/
HD 149143 b
HD 149143 b

  • HD 149143 b is an exoplanet orbiting the star HD 149143, located about 242.5 light-years (74.3 pc) away from Solar System. Its discovery was publicly announced on 2005.
  • The host star HD 149143 has apparent magnitude of 7.9, with absolute magnitude of 3.5.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5730 with its spectral types of G0 IV
  • In this planetary system, the extrasolar planet HD 149143 b orbits around the star HD 149143 every 4.1 days with its orbital distance of 0.05 AU ( 7779089.3 km)
  • (Projected orbit of HD 149143 b around its host star HD 149143)


  • The Star HD 149143 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.759 AU ( 113594462.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.050 AU ( 157017232.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.599 AU ( 239259514.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.354 AU ( 352080857.5 km)
  • Radiation at Planetary Boundary of HD 149143 b : 557180.90 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 149143)



  • Kopparapu Recent Venus for Star HD 149143 distance : 0.789 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 149143 distance : 0.999 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 149143 distance : 0.965 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 149143 distance : 1.058 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 149143 distance : 1.767 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 149143 distance : 1.864 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 149143)



  • Original Kopparapu Recent Venus for Star HD 149143 distance : 0.790 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 149143 distance : 1.027 AU
  • Original Kopparapu Moist Greenhouse for Star HD 149143 distance : 1.045 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 149143 distance : 1.798 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 149143 distance : 1.870 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 149143)



    (Position in Stellar Map of star HD 149143 and its Exoplanet HD 149143 b)



    (Zoomed position in Stellar Map of star HD 149143 and its Exoplanet HD 149143 b (zoom level 3))

    (Synthetic Spectrum of star HD 149143*)
    *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