Bianca (moon)
 |
|
| Discovery | |
|---|---|
| Discovered by | Bradford A. Smith / Voyager 2 |
| Discovery date | January 23, 1986 |
| Orbital characteristics | |
|
Mean orbit radius
|
59,165.550 ± 0.045 km |
| Eccentricity | 0.00092 ± 0.000118 |
| 0.434578986 ± 0.000000022 d | |
| Inclination | 0.19308 ± 0.054° (to Uranus' equator) |
| Satellite of | Uranus |
| Physical characteristics | |
| Dimensions | 64 × 46 × 46 km |
|
Mean radius
|
25.7 ± 2 km |
| ~8300 km² | |
| Volume | ~71,000 km³ |
| Mass | ~9.2×1016kg |
|
Mean density
|
~1.3 g/cm³ (assumed) |
| ~0.0086 m/s² | |
| ~0.022 km/s | |
| synchronous | |
| zero | |
| Albedo |
|
| Temperature | ~64 K |
Bianca (/biˈɑːŋkə/ bee-AHNG-kə) is an inner satellite of Uranus. It was discovered from the images taken by Voyager 2 on January 23, 1986, and was given the temporary designation S/1986 U 9. It was named after the sister of Katherine in Shakespeare's play The Taming of the Shrew. It is also designated Uranus VIII.
Bianca belongs to Portia Group of satellites, which also includes Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita. These satellites have similar orbits and photometric properties. Other than its orbit, radius of 27 km, and geometric albedo of 0.08 virtually nothing is known about it.
At the Voyager 2 images Bianca appears as an elongated object, the major axis pointing towards Uranus. The ratio of axes of the Bianca's prolate spheroid is 0.7 ± 0.2. Its surface is grey in color.
Explanatory notes
Citations
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Wikipedia