Imaginary Picture of HD 7449 A b

Display orbital revolution of HD 7449 A b around the hoststar HD 7449 A
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Exoplanet Name : HD 7449 A b
Alternate Name : HD 7449 b
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.5080 (Mjup) 161.5125 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.3800 (AU) 2.3800 (AU Est.)
Eccentricity : 0.9200
Orbital Period(Yrs) 3.4373
Orbital Period(Observed/Estimated) 1255.50 (Days Obs.) 1308.76 (Days Est.)
Star Radiation at Atmospheric Boundary: 290.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 184.3 (K)
Blackbody T 0.3(K) 173.1 (K)
Blackbody T 0.7(K) 140.0 (K)
Tidally Locked Blackbody T 0.1(K) 219.2 (K)
Tidally Locked Blackbody T 0.3(K) 205.8 (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 7449 A
Alternate Name : HD 7449
Star Distance(LY) : 120.2
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 2.1 (GY)
Temperature : 6024 (K)
Spectral type : F8V
Metalicity : -0.1
Absolute Magnitude: 4.7
Apparent Magnitude: 7.5
Right Ascension(RA) 18.6222
Declination (DEC) -5.0475
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Dumusque,.; Lovis,.; S_gransan,.; Mayor,.; Udry,.; Benz,.; Bouchy,.; Lourto,.; Mordasini,.; Pepe,.; Queloz,.; Santos,..; Naef,."
Discovery Paper - Title The HARPS search for southern extra-solar planets. XXX. Planetary systems around stars with solar-like magnetic cycles and short-term activity variation
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+7449+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%207449%20b/
HD 7449 A b
HD 7449 A b

  • HD 7449 A b is an exoplanet orbiting the star HD 7449 A, located about 120.2 light-years (36.8 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 7449 A has apparent magnitude of 7.5, with absolute magnitude of 4.7.
  • It is 1.1 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 6024 with its spectral types of F8V
  • In this planetary system, the extrasolar planet HD 7449 A b orbits around the star HD 7449 A every 1255.5 days with its orbital distance of 2.38 AU ( 356042932.3 km)
  • (Projected orbit of HD 7449 A b around its host star HD 7449 A)


  • The Star HD 7449 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.794 AU ( 118781666.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.098 AU ( 164187303.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.672 AU ( 250185116.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.461 AU ( 368158358.9 km)
  • Radiation at Planetary Boundary of HD 7449 A b : 290.83 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 7449 A)



  • Kopparapu Recent Venus for Star HD 7449 A distance : 0.811 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 7449 A distance : 1.027 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 7449 A distance : 0.992 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 7449 A distance : 1.087 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 7449 A distance : 1.802 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 7449 A distance : 1.901 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 7449 A)



  • Original Kopparapu Recent Venus for Star HD 7449 A distance : 0.816 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 7449 A distance : 1.054 AU
  • Original Kopparapu Moist Greenhouse for Star HD 7449 A distance : 1.080 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 7449 A distance : 1.834 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 7449 A distance : 1.907 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 7449 A)



    (Position in Stellar Map of star HD 7449 A and its Exoplanet HD 7449 A b)



    (Zoomed position in Stellar Map of star HD 7449 A and its Exoplanet HD 7449 A b (zoom level 3))