Discovery date January 23, 1986 Eccentricity 0.00092 ± 0.000118 Discovered 23 January 1986 | Mean orbit radius 59,165.550 ± 0.045 km Orbital period 10 hours | |
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Inclination 0.19308 ± 0.054° (to Uranus' equator) Similar Uranus moons, Other celestial objects | ||
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.