Bianca (Moon)

Bianca
Discovery
Discovered by	Bradford A. Smith / Voyager 2
Discovery date	January 23, 1986
Designations
Designation	Uranus VIII
Pronunciation	/biˈæŋkə/
Adjectives	Biancan
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	0.08 ± 0.01; 0.07;
Physics	~64 K

Short description: Moon of Uranus

There is also an asteroid called 218 Bianca.

Bianca 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.^[8] It was named after the sister of Katherine in Shakespeare's play The Taming of the Shrew. It is also designated Uranus VIII.^[9]

Bianca belongs to the Portia group of satellites, which also includes Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita.^[7] These satellites have similar orbits and photometric properties.^[7] Other than its orbit,^[3] radius of 27 km,^[4] and geometric albedo of 0.08^[7] virtually nothing is known about it.

In 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.^[4] Its surface is grey in color.^[4]

References

Explanatory notes

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

Citations

↑ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
↑ Ruud (2008) Critical companion to Dante: a literary reference to his life and work
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 Jacobson, R. A. (1998). "The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations". The Astronomical Journal 115 (3): 1195–1199. doi:10.1086/300263. Bibcode: 1998AJ....115.1195J.
↑ ^4.0 ^4.1 ^4.2 ^4.3 ^4.4 ^4.5 ^4.6 Karkoschka, Erich (2001). "Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites". Icarus 151 (1): 69–77. doi:10.1006/icar.2001.6597. Bibcode: 2001Icar..151...69K.
↑ ^5.0 ^5.1 ^5.2 "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 24 October 2008. http://ssd.jpl.nasa.gov/?sat_phys_par.
↑ ^6.0 ^6.1 Williams, Dr. David R. (23 November 2007). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html.
↑ ^7.0 ^7.1 ^7.2 ^7.3 Karkoschka, Erich (2001). "Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope". Icarus 151 (1): 51–68. doi:10.1006/icar.2001.6596. Bibcode: 2001Icar..151...51K.
↑ Smith, B. A. (1986-01-27). "Satellites and Rings of Uranus". IAU Circular 4168. http://www.cbat.eps.harvard.edu/iauc/04100/04168.html#Item1. Retrieved 2011-10-31.
↑ "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. http://planetarynames.wr.usgs.gov/Page/Planets.

External links

Bianca Profile by NASA's Solar System Exploration
Uranus' Known Satellites (by Scott S. Sheppard)

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[calculated-7] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 Calculated on the basis of other parameters.

[1] Benjamin Smith (1903) The Century Dictionary and Cyclopedia

[2] Ruud (2008) Critical companion to Dante: a literary reference to his life and work

[Jacobson_1998-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 Jacobson, R. A. (1998). "The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations". The Astronomical Journal 115 (3): 1195–1199. doi:10.1086/300263. Bibcode: 1998AJ....115.1195J.

[Karkoschka,_Voyager_2001-4] 4.0 ^4.1 ^4.2 ^4.3 ^4.4 ^4.5 ^4.6 Karkoschka, Erich (2001). "Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites". Icarus 151 (1): 69–77. doi:10.1006/icar.2001.6597. Bibcode: 2001Icar..151...69K.

[JPL-SSD-sat_phys-5] 5.0 ^5.1 ^5.2 "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 24 October 2008. http://ssd.jpl.nasa.gov/?sat_phys_par.

[Williams_2007_nssdc-6] 6.0 ^6.1 Williams, Dr. David R. (23 November 2007). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html.

[Karkoschka,_Hubble_2001-8] 7.0 ^7.1 ^7.2 ^7.3 Karkoschka, Erich (2001). "Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope". Icarus 151 (1): 51–68. doi:10.1006/icar.2001.6596. Bibcode: 2001Icar..151...51K.

[IAUC_4168-9] Smith, B. A. (1986-01-27). "Satellites and Rings of Uranus". IAU Circular 4168. http://www.cbat.eps.harvard.edu/iauc/04100/04168.html#Item1. Retrieved 2011-10-31.

[Gazetteer-10] "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. http://planetarynames.wr.usgs.gov/Page/Planets.

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 Chasmata Ursula Rousillon Rupes Umbrielian Wunda Vuver Skynd

v t e Natural satellites of the Solar System
Planetary satellites	Terrestrial Martian Jovian Saturnian Uranian Neptunian
Dwarf-planet satellites	Plutonian Haumean Makemakean Eridian OR₁₀ Quaoaran Orcean
Minor-planet moons	Main belt binaries: Antiope Frostia Berna Tokai Ostro Balam Doppler Pauling Iwamoto Wolff Bettig Christophedumas Trojans: Patroclus–Menoetius Hektor–Skamandrios Iphthime Eurydamas TNOs: Huya Typhon–Echidna Lempo–Paha–Hiisi 2002 UX₂₅ Logos–Zoe Ceto–Phorcys Borasisi–Pabu Sila–Nunam Teharonhiawako–Sawiskera Salacia–Actaea 2002 WC₁₉ Altjira Varda–Ilmarë 2003 AZ₈₄ Gǃkúnǁʼhòmdímà–Gǃòʼé ǃHú Mors–Somnus Manwë–Thorondor ǂKá̦gára–ǃHãunu 2013 FY27
Ranked by size	Planetary-mass moon Ganymede largest: 5268 km / 0.413 Earths Titan Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Charon Umbriel Ariel Dione Tethys Dysnomia Enceladus Miranda Vanth Proteus Mimas Ilmarë Nereid Hiʻiaka Actaea Hyperion ...
Discovery timeline Inner moons Irregular moons List Planetary-mass moons Naming Subsatellite Regular moons Trojan moons

Discovery

Discovered by	Bradford A. Smith / Voyager 2
Discovery date	January 23, 1986
Designations
Designation	Uranus VIII
Pronunciation	/biˈæŋkə/^[1]
Adjectives	Biancan^[2]
Orbital characteristics
Mean orbit radius	59,165.550 ± 0.045 km^[3]
Eccentricity	0.00092 ± 0.000118^[3]
Orbital period	0.434578986 ± 0.000000022 d^[3]
Inclination	0.19308 ± 0.054° (to Uranus' equator)^[3]
Satellite of	Uranus
Physical characteristics
Dimensions	64 × 46 × 46 km^[4]
Mean radius	25.7 ± 2 km^[4]^[5]^[6]
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)^[5]
surface gravity	~0.0086 m/s²^{[lower-alpha 1]}
escape velocity	~0.022 km/s^{[lower-alpha 1]}
Rotation period	synchronous^[4]
Axial tilt	zero^[4]
Albedo	0.08 ± 0.01^[7] 0.07^[5]^[6]
Physics	~64 K^{[lower-alpha 1]}

Bianca (Moon)

See also

References

External links