Bianca (moon)

Bianca
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
Orbital period	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
Surface area	~8300 km²
Volume	~71,000 km³
Mass	~9.2×1016 kg
Mean density	~1.3 g/cm³ (assumed)
Surface gravity	~0.0086 m/s²
Escape velocity	~0.022 km/s
Rotation period	synchronous
Axial tilt	zero
Albedo	<templatestyles src="Plainlist/styles.css"/> 0.08 ± 0.01; 0.07;
Temperature	~64 K

There is also an asteroid called 218 Bianca.

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]

References

Explanatory notes

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 Calculated on the basis of other parameters.

Citations

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External links

[calculated-5] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 Calculated on the basis of other parameters.

[Jacobson_1998-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 Lua error in package.lua at line 80: module 'strict' not found.

[Karkoschka.2C_Voyager_2001-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 Lua error in package.lua at line 80: module 'strict' not found.

[JPL-SSD-sat_phys-3] 3.0 ^3.1 ^3.2 Lua error in package.lua at line 80: module 'strict' not found.

[Williams_2007_nssdc-4] 4.0 ^4.1 Lua error in package.lua at line 80: module 'strict' not found.

[Karkoschka.2C_Hubble_2001-6] 5.0 ^5.1 ^5.2 ^5.3 Lua error in package.lua at line 80: module 'strict' not found.

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[1]

[2]

[3]

[4]

[lower-alpha 1]

[5]

[6]

[7]

v t e Moons of Uranus
Generally listed in increasing distance from Uranus
Inner	Rings of Uranus Cordelia Ophelia Bianca Cressida Desdemona Juliet Portia Rosalind Cupid Belinda Perdita Puck Mab
Major (spheroid)	Miranda Ariel Umbriel Titania Oberon
Outer (irregular)	Francisco Caliban Stephano Trinculo Sycorax Margaret Prospero Setebos Ferdinand
Geological features	Arielian Kachina Chasmata Yangoor Mirandian Verona Rupes Oberonian Hamlet Mommur Chasma Puckian Titanian Gertrude Messina Chasma Ursula Rousillon Rupes Umbrielian Wunda Vuver Skynd

Bianca (moon)

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Discovery

Discovered by	Bradford A. Smith / Voyager 2
Discovery date	January 23, 1986
Orbital characteristics
Mean orbit radius	59,165.550 ± 0.045 km^[1]
Eccentricity	0.00092 ± 0.000118^[1]
Orbital period	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]
Mean radius	25.7 ± 2 km^[2]^[3]^[4]
Surface area	~8300 km²^{[lower-alpha 1]}
Volume	~71,000 km³^{[lower-alpha 1]}
Mass	~9.2×10¹⁶ kg^{[lower-alpha 1]}
Mean density	~1.3 g/cm³ (assumed)^[3]
Surface gravity	~0.0086 m/s²^{[lower-alpha 1]}
Escape velocity	~0.022 km/s^{[lower-alpha 1]}
Rotation period	synchronous^[2]
Axial tilt	zero^[2]
Albedo	<templatestyles src="Plainlist/styles.css"/> 0.08 ± 0.01^[5] 0.07^[3]^[4]
Temperature	~64 K^{[lower-alpha 1]}