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16 Cygni B System |
Stellar Information
| Other Names | Gliese 765.1, HD 186427, HR 7504, ADS 12815, Struve 46 |
| Distance from Sol | 70.5 light years (Hipparcos) |
| Spectral Type | G5 V |
| Mass (xSol) | 1.01 (16 Cyg B at exoplanets.org) |
| Luminosity (xSol) | 1.33 |
| Diameter (xSol) | 1.19 (Apparent Diameters and Absolute Radii of Stars, Fracassini 1988) |
| Metallicity (xSol) | 1.41 (Strobel [Fe/H] Determinations) |
| Age | 9.5 billion years old (Guinan et al, 1999) |
| Habitable Zone | 1.15 AU |
Planetary Information
| Other Names | 16 Cygni B b |
| Common Name | None |
| Detection Method | Radial-Velocity |
| Detection Date | 1996 |
| Mass (xJupiter) | 1.68 |
| Diameter | Unknown |
| Semi-Major Axis | 1.66 AU |
| Orbital Period | 2.2 years (exoplanets.org) |
| Orbital Eccentricity | 0.68 |
| Orbital Inclination | Unknown |
| Notes | Subsequent astrometric analysis, however, suggests that planet b may have 14 times the mass of Jupiter with an inclination of 173.0° from Earth's line of sight (Han et al, 2000). Thus, the planet could be an extremely dim brown dwarf, substellar companion of 16 Cygni B. |
A comparison of the orbits of 16 Cygni B b (above), and the Inner Solar System (top) (image generated with Celestia).
A hypothetical view of 16 Cygni B b. Jupiter-like in appearance, the planet could actually be wearing almost any face. (image generated with Celestia).
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Updates January 8, 2005: Established this page. |
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© John M. Dollan
2003-2005 This Page first uploaded January 8, 2005 Most recent update for this page January 8, 2005 |
