Bianca (moon)
- There is also an asteroid called 218 Bianca.
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| Discovery | |
|---|---|
| Discovered by | Bradford A. Smith / Voyager 2 |
| Discovery date | January 23, 1986 |
| Orbital characteristics | |
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Mean orbit radius
|
59,165.550 ± 0.045 km[1] |
| Eccentricity | 0.00092 ± 0.000118[1] |
| 0.434578986 ± 0.000000022 d[1] | |
| Inclination | 0.19308 ± 0.054° (to Uranus' equator)[1] |
| Satellite of | Uranus |
| Physical characteristics | |
| Dimensions | 64 × 46 × 46 km[2] |
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Mean radius
|
25.7 ± 2 km[2][3][4] |
| ~8300 km²[lower-alpha 1] | |
| Volume | ~71,000 km³[lower-alpha 1] |
| Mass | ~9.2×1016 kg[lower-alpha 1] |
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Mean density
|
~1.3 g/cm³ (assumed)[3] |
| ~0.0086 m/s²[lower-alpha 1] | |
| ~0.022 km/s[lower-alpha 1] | |
| synchronous[2] | |
| zero[2] | |
| Albedo | <templatestyles src="Plainlist/styles.css"/> |
| Temperature | ~64 K[lower-alpha 1] |
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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.[6] It was named after the sister of Katherine in Shakespeare's play The Taming of the Shrew. It is also designated Uranus VIII.[7]
Bianca belongs to Portia Group of satellites, which also includes Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita.[5] These satellites have similar orbits and photometric properties.[5] Other than its orbit,[1] radius of 27 km,[2] and geometric albedo of 0.08[5] 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.[2] Its surface is grey in color.[2]
See also
References
Explanatory notes
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