Imaginary Picture of 16 Cyg B b
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Exoplanet Name : 16 Cyg B b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.6800 (Mjup) 534.1358 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.6800 (AU) 1.6800 (AU Est.)
Eccentricity : 0.6890
Orbital Period(Yrs) 2.1889
Orbital Period(Observed/Estimated) 799.50 (Days Obs.) 791.40 (Days Est.)
Star Radiation at Atmospheric Boundary: 461.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 206.8 (K)
Blackbody T 0.3(K) 194.2 (K)
Blackbody T 0.7(K) 157.2 (K)
Tidally Locked Blackbody T 0.1(K) 246.0 (K)
Tidally Locked Blackbody T 0.3(K) 231.0 (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 : 16 Cyg B
Alternate Name :
Star Distance(LY) : 69.8
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 8.0 (GY)
Temperature : 5766 (K)
Spectral type : G2.5 V
Metalicity : 0.1
Absolute Magnitude: 4.5
Apparent Magnitude: 6.2
Right Ascension(RA) 295.4666
Declination (DEC) 50.5175
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
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=16+Cyg+B+&submit=SIMBAD+search
Open Exoplanet Database Link 0
16 Cyg B b
16 Cyg B b

  • 16 Cyg B b is an exoplanet orbiting the star 16 Cyg B, located about 69.8 light-years (21.4 pc) away from Solar System. Its discovery was publicly announced on 1996.
  • The host star 16 Cyg B has apparent magnitude of 6.2, with absolute magnitude of 4.5.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5766 with its spectral types of G2.5 V
  • In this planetary system, the extrasolar planet 16 Cyg B b orbits around the star 16 Cyg B every 799.5 days with its orbital distance of 1.68 AU ( 251324422.8 km)
  • (Projected orbit of 16 Cyg B b around its host star 16 Cyg B)


  • The Star 16 Cyg B 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.706 AU ( 105592595.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.976 AU ( 145956561.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.487 AU ( 222405499.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.188 AU ( 327279435.3 km)
  • Radiation at Planetary Boundary of 16 Cyg B b : 461.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 16 Cyg B)



  • Kopparapu Recent Venus for Star 16 Cyg B distance : 0.732 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 16 Cyg B distance : 0.927 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 16 Cyg B distance : 0.895 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 16 Cyg B distance : 0.982 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 16 Cyg B distance : 1.638 AU
  • Kopparapu Outer Boundary for Early Mars for Star 16 Cyg B distance : 1.727 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 16 Cyg B)



  • Original Kopparapu Recent Venus for Star 16 Cyg B distance : 0.733 AU
  • Original Kopparapu Runaway Greenhouse for Star 16 Cyg B distance : 0.953 AU
  • Original Kopparapu Moist Greenhouse for Star 16 Cyg B distance : 0.970 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 16 Cyg B distance : 1.666 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 16 Cyg B distance : 1.733 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 16 Cyg B)



    (Position in Stellar Map of star 16 Cyg B and its Exoplanet 16 Cyg B b)



    (Zoomed position in Stellar Map of star 16 Cyg B and its Exoplanet 16 Cyg B b (zoom level 3))