Imaginary Picture of HD 82943 c

Display orbital revolution of HD 82943 c around the hoststar HD 82943
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Exoplanet Name : HD 82943 c
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 14.4000 (Mjup) 4578.3072 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.7460 (AU) 0.7460 (AU Est.)
Eccentricity : 0.4250
Orbital Period(Yrs) 0.6004
Orbital Period(Observed/Estimated) 219.30 (Days Obs.) 216.65 (Days Est.)
Star Radiation at Atmospheric Boundary: 3290.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 338.0 (K)
Blackbody T 0.3(K) 317.5 (K)
Blackbody T 0.7(K) 256.9 (K)
Tidally Locked Blackbody T 0.1(K) 402.0 (K)
Tidally Locked Blackbody T 0.3(K) 377.5 (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 82943
Alternate Name :
Star Distance(LY) : 90.2
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.1 (GY)
Temperature : 5874 (K)
Spectral type : G0
Metalicity : 0.3
Absolute Magnitude: 4.3
Apparent Magnitude: 6.5
Right Ascension(RA) 143.7083
Declination (DEC) -12.1294
Hubble Space Telescope Guide Star Catalog (GSC) ID 05469-01000
Discovered by
Discovery Paper - Authors "Xianyu Tan , Matthew J. Payne , Man Hoi Lee , Eric B. Ford , Andrew W. Howard , John. A. Johnson , Geoff W. Marcy , Jason T. Wright "
Discovery Paper - Title Characterizing the Orbital and Dynamical State of the HD 82943 Planetary System With Keck Radial Velocity Data
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+82943+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2082943%20c/
HD 82943 c
HD 82943 c

  • HD 82943 c is an exoplanet orbiting the star HD 82943, located about 90.2 light-years (27.7 pc) away from Solar System. Its discovery was publicly announced on 2003.
  • The host star HD 82943 has apparent magnitude of 6.5, with absolute magnitude of 4.3.
  • It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5874 with its spectral types of G0
  • In this planetary system, the extrasolar planet HD 82943 c orbits around the star HD 82943 every 219.3 days with its orbital distance of 0.75 AU ( 111600011.5 km)
  • (Projected orbit of HD 82943 c around its host star HD 82943)


  • The Star HD 82943 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.837 AU ( 125240277.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.157 AU ( 173114792.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.763 AU ( 263788632.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.595 AU ( 388176529.0 km)
  • Radiation at Planetary Boundary of HD 82943 c : 3290.78 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 82943)



  • Kopparapu Recent Venus for Star HD 82943 distance : 0.863 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 82943 distance : 1.092 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 82943 distance : 1.055 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 82943 distance : 1.157 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 82943 distance : 1.924 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 82943 distance : 2.030 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 82943)



  • Original Kopparapu Recent Venus for Star HD 82943 distance : 0.865 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 82943 distance : 1.122 AU
  • Original Kopparapu Moist Greenhouse for Star HD 82943 distance : 1.145 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 82943 distance : 1.958 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 82943 distance : 2.037 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 82943)



    (Position in Stellar Map of star HD 82943 and its Exoplanet HD 82943 c)



    (Zoomed position in Stellar Map of star HD 82943 and its Exoplanet HD 82943 c (zoom level 3))