Imaginary Picture of HD 43691 b
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Exoplanet Name : HD 43691 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.4900 (Mjup) 791.6656 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2400 (AU) 0.2400 (AU Est.)
Eccentricity : 0.1400
Orbital Period(Yrs) 0.1012
Orbital Period(Observed/Estimated) 36.96 (Days Obs.) 36.56 (Days Est.)
Star Radiation at Atmospheric Boundary: 48337.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 661.8 (K)
Blackbody T 0.3(K) 621.5 (K)
Blackbody T 0.7(K) 502.8 (K)
Tidally Locked Blackbody T 0.1(K) 787.0 (K)
Tidally Locked Blackbody T 0.3(K) 739.1 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 43691
Alternate Name :
Star Distance(LY) : 278.1
Stellar Radius(Rsun) : 1.2 (Rsun Estimated)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 2.8 (GY)
Temperature : 6200 (K)
Spectral type : G0IV
Metalicity : 0.3
Absolute Magnitude: 3.4
Apparent Magnitude: 8.0
Right Ascension(RA) 94.8945
Declination (DEC) 41.0922
Hubble Space Telescope Guide Star Catalog (GSC) ID 02930-02105
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.harvard.edu/simbad/sim-basic?Ident=HD+43691+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2043691%20b/
HD 43691 b
HD 43691 b

  • HD 43691 b is an exoplanet orbiting the star HD 43691, located about 278.1 light-years (85.3 pc) away from Solar System. Its discovery was publicly announced on 2007.
  • The host star HD 43691 has apparent magnitude of 8.0, with absolute magnitude of 3.4.
  • It is 1.4 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6200 with its spectral types of G0IV
  • In this planetary system, the extrasolar planet HD 43691 b orbits around the star HD 43691 every 37.0 days with its orbital distance of 0.24 AU ( 35903489.0 km)
  • (Projected orbit of HD 43691 b around its host star HD 43691)


  • The Star HD 43691 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.032 AU ( 154421916.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.427 AU ( 213451444.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.174 AU ( 325252764.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.199 AU ( 478623690.9 km)
  • Radiation at Planetary Boundary of HD 43691 b : 48337.48 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 43691)



  • Kopparapu Recent Venus for Star HD 43691 distance : 1.043 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 43691 distance : 1.321 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 43691 distance : 1.275 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 43691 distance : 1.398 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 43691 distance : 2.309 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 43691 distance : 2.436 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 43691)



  • Original Kopparapu Recent Venus for Star HD 43691 distance : 1.054 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 43691 distance : 1.355 AU
  • Original Kopparapu Moist Greenhouse for Star HD 43691 distance : 1.394 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 43691 distance : 2.351 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 43691 distance : 2.445 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 43691)



    (Position in Stellar Map of star HD 43691 and its Exoplanet HD 43691 b)



    (Zoomed position in Stellar Map of star HD 43691 and its Exoplanet HD 43691 b (zoom level 3))