Imaginary Picture of HD 143105 b
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Exoplanet Name : HD 143105 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.2100 (Mjup) 384.7050 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0379 (AU) 0.0379 (AU Est.)
Eccentricity : 0.0700
Orbital Period(Yrs) 0.0060
Orbital Period(Observed/Estimated) 2.20 (Days Obs.) 2.19 (Days Est.)
Star Radiation at Atmospheric Boundary: 2423659.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1761.0 (K)
Blackbody T 0.3(K) 1653.8 (K)
Blackbody T 0.7(K) 1338.1 (K)
Tidally Locked Blackbody T 0.1(K) 2094.2 (K)
Tidally Locked Blackbody T 0.3(K) 1966.7 (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 143105
Alternate Name :
Star Distance(LY) : 153.1
Stellar Radius(Rsun) : 1.3 (Rsun Estimated)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6380 (K)
Spectral type : F5
Metalicity : 0.1
Absolute Magnitude: 3.4
Apparent Magnitude: 6.8
Right Ascension(RA) 238.4023
Declination (DEC) 68.7200
Hubble Space Telescope Guide Star Catalog (GSC) ID 04412-01654
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+143105+&submit=SIMBAD+search
Open Exoplanet Database Link 0
HD 143105 b
HD 143105 b

  • HD 143105 b is an exoplanet orbiting the star HD 143105, located about 153.1 light-years (46.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 143105 has apparent magnitude of 6.8, with absolute magnitude of 3.4.
  • It is 1.5 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6380 with its spectral types of F5
  • In this planetary system, the extrasolar planet HD 143105 b orbits around the star HD 143105 every 2.2 days with its orbital distance of 0.04 AU ( 5669759.3 km)
  • (Projected orbit of HD 143105 b around its host star HD 143105)


  • The Star HD 143105 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.154 AU ( 172675493.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.595 AU ( 238682657.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.431 AU ( 363699549.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.578 AU ( 535199819.4 km)
  • Radiation at Planetary Boundary of HD 143105 b : 2423659.34 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 143105)



  • Kopparapu Recent Venus for Star HD 143105 distance : 1.154 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 143105 distance : 1.461 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 143105 distance : 1.411 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 143105 distance : 1.546 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 143105 distance : 2.546 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 143105 distance : 2.686 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 143105)



  • Original Kopparapu Recent Venus for Star HD 143105 distance : 1.170 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 143105 distance : 1.498 AU
  • Original Kopparapu Moist Greenhouse for Star HD 143105 distance : 1.548 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 143105 distance : 2.592 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 143105 distance : 2.696 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 143105)



    (Position in Stellar Map of star HD 143105 and its Exoplanet HD 143105 b)



    (Zoomed position in Stellar Map of star HD 143105 and its Exoplanet HD 143105 b (zoom level 3))