Imaginary Picture of HD 196885 A b

Display orbital revolution of HD 196885 A b around the hoststar HD 196885 A
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Exoplanet Name : HD 196885 A b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.9800 (Mjup) 947.4552 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.6000 (AU) 2.6000 (AU Est.)
Eccentricity : 0.4800
Orbital Period(Yrs) 3.6303
Orbital Period(Observed/Estimated) 1326.00 (Days Obs.) 1327.77 (Days Est.)
Star Radiation at Atmospheric Boundary: 939.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 247.1 (K)
Blackbody T 0.3(K) 232.0 (K)
Blackbody T 0.7(K) 187.7 (K)
Tidally Locked Blackbody T 0.1(K) 293.8 (K)
Tidally Locked Blackbody T 0.3(K) 275.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 196885 A
Alternate Name :
Star Distance(LY) : 109.3
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 2.0 (GY)
Temperature : 6340 (K)
Spectral type : F8V
Metalicity : 0.3
Absolute Magnitude: 3.8
Apparent Magnitude: 6.4
Right Ascension(RA) 309.9661
Declination (DEC) 11.2494
Hubble Space Telescope Guide Star Catalog (GSC) ID 01092-01778
Discovered by
Discovery Paper - Authors "G. Chauvin, A.-M. Lagrange, S. Udry, and M. Mayor"
Discovery Paper - Title "Characterization of the long-period companions of the exoplanet host stars: HD196885, HD1237 and HD27442 VLT/NACO and SINFONI near-infrared, follow-up imaging and spectroscopy"
Discovery Paper - Journal "A&A 475, 723-727 (2007) DOI: 10.1051/0004-6361:20067046"
Discovery Paper - URL http://www.aanda.org/articles/aa/ps/2007/44/aa7046-06.ps.gz
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+196885+A+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20196885%20A%20b/
HD 196885 A b
HD 196885 A b

  • HD 196885 A b is an exoplanet orbiting the star HD 196885 A, located about 109.3 light-years (33.5 pc) away from Solar System. Its discovery was publicly announced on 2007.
  • The host star HD 196885 A has apparent magnitude of 6.4, with absolute magnitude of 3.8.
  • It is 1.3 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 6340 with its spectral types of F8V
  • In this planetary system, the extrasolar planet HD 196885 A b orbits around the star HD 196885 A every 1326.0 days with its orbital distance of 2.60 AU ( 388954463.8 km)
  • (Projected orbit of HD 196885 A b around its host star HD 196885 A)


  • The Star HD 196885 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.559 AU ( 233179120.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.155 AU ( 322314481.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.283 AU ( 491135941.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.831 AU ( 722728052.5 km)
  • Radiation at Planetary Boundary of HD 196885 A b : 939.12 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 196885 A)



  • Kopparapu Recent Venus for Star HD 196885 A distance : 1.561 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 196885 A distance : 1.977 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 196885 A distance : 1.910 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 196885 A distance : 2.093 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 196885 A distance : 3.449 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 196885 A distance : 3.638 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 196885 A)



  • Original Kopparapu Recent Venus for Star HD 196885 A distance : 1.582 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 196885 A distance : 2.028 AU
  • Original Kopparapu Moist Greenhouse for Star HD 196885 A distance : 2.094 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 196885 A distance : 3.511 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 196885 A distance : 3.651 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 196885 A)



    (Position in Stellar Map of star HD 196885 A and its Exoplanet HD 196885 A b)



    (Zoomed position in Stellar Map of star HD 196885 A and its Exoplanet HD 196885 A b (zoom level 3))