Editing Bianca (moon)

{{Short description|Moon of Uranus}}
{{see also|Bianca (disambiguation)}}
: ''There is also an [[asteroid]] called [[218 Bianca]].''
{{Infobox planet
| name             = Bianca
| image            = Biancamoon.png
| discoverer       = [[Bradford A. Smith]] / ''[[Voyager 2]]''
| discovered       = January 23, 1986
| mpc_name         = Uranus VIII
| pronounced       = {{IPAc-en|b|i|ˈ|æ|ŋ|k|ə}}<ref>{{cite book|author=Benjamin Smith|year=1903|title=The Century Dictionary and Cyclopedia}}</ref>
| adjective        = Biancan<ref>{{cite book|author=Ruud|year=2008|title=Critical companion to Dante: a literary reference to his life and work}}</ref>
| orbit_ref        = <ref name="Jacobson 1998" />
| semimajor        = {{val|59165.550|0.045|u=km}}
| eccentricity     = 0.00092 ± 0.000118
| period           = 0.434578986 ± 0.000000022 d
| inclination      = 0.19308 ± 0.054° (to Uranus's equator)
| satellite_of     = [[Uranus]]
| dimensions       = 64 × 46 × 46 km<ref name="Karkoschka, Voyager 2001" />{{refn|group=note|Only two dimensions are known; the third dimension has been assumed to equal the smaller known dimension.}}
| surface_area     = ~8400 km<sup>2</sup>{{efn|name=calculated}}
| volume           = {{val|70900|29.9|u=km3|errend=%}}<ref name = "FrenchEtAl2024"/>
| mass             = {{val|6.38|1.91|ul=kg|e=16}}<ref name = "FrenchEtAl2024"/>
| density          = ≥0.79 g/cm<sup>3</sup><ref name = "FrenchEtAl2024"/><br>0.90 g/cm<sup>3</sup> (assumed)<ref name = "FrenchEtAl2024"/>
| surface_grav     = ~{{Gr|6.38e-5|32}}–{{Gr|6.38e-5|23}} [[Acceleration|m/s<sup>2</sup>]]{{efn|name=calculated}}
| escape_velocity  = ~{{V2|6.38e-5|32}}–{{V2|6.38e-5|23}} km/s{{efn|name=calculated}}
| rotation         = synchronous<ref name="Karkoschka, Voyager 2001" />
| axial_tilt       = zero<ref name="Karkoschka, Voyager 2001" />
| albedo           = 0.08 ± 0.01<ref name="Karkoschka, Hubble 2001" /><br>0.07<ref name="JPL-SSD-sat_phys" /><ref name="Williams 2007 nssdc" />
| single_temperature = ~64 [[Kelvin|K]]{{efn|name=calculated}}
}}

'''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&nbsp;U&nbsp;9'''.<ref name="IAUC 4168" /> It was named after the sister of Katherine in Shakespeare's play ''[[The Taming of the Shrew]]''. It is also designated '''Uranus&nbsp;VIII'''.<ref name="Gazetteer" />

Bianca belongs to the Portia group of satellites, which also includes [[Cressida (moon)|Cressida]], [[Desdemona (moon)|Desdemona]], [[Juliet (moon)|Juliet]], [[Portia (moon)|Portia]], [[Rosalind (moon)|Rosalind]], [[Cupid (moon)|Cupid]], [[Belinda (moon)|Belinda]], and [[Perdita (moon)|Perdita]].<ref name="Karkoschka, Hubble 2001" /> These satellites have similar orbits and photometric properties.<ref name="Karkoschka, Hubble 2001" /> Other than its orbit,<ref name="Jacobson 1998" /> size of 64 × 46 km,<ref name="Karkoschka, Voyager 2001" /> and geometric albedo of 0.08,<ref name="Karkoschka, Hubble 2001" /> virtually nothing is known about it.

In ''[[Voyager 2]]'' images Bianca appears as an elongated object, with its major axis pointing towards Uranus. The ratio of axes of the Bianca's prolate spheroid is {{val|0.7|0.2}}.<ref name="Karkoschka, Voyager 2001" /> Its surface is grey in color.<ref name="Karkoschka, Voyager 2001" />

== See also ==

* [[Moons of Uranus]]

== Notes ==

{{notes
| notes =

{{efn
| name = calculated
| Calculated on the basis of other parameters.
}}

}}

== References ==
{{reflist
| refs =

<ref name="Jacobson 1998">
{{cite journal| doi = 10.1086/300263| last1 = Jacobson| first1 = R. A.| year = 1998| title = The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations| journal = The Astronomical Journal| volume = 115| issue = 3| pages = 1195–1199| bibcode = 1998AJ....115.1195J| s2cid = 118616209| doi-access = free}}
</ref>

<ref name="Karkoschka, Voyager 2001">
{{cite journal| doi = 10.1006/icar.2001.6597| last = Karkoschka| first = Erich| author-link = Erich Karkoschka| year = 2001| title = Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites| journal = Icarus| volume = 151| issue = 1| pages = 69–77| bibcode = 2001Icar..151...69K| ref = {{sfnRef|Karkoschka, Voyager|2001}}}}
</ref>

<ref name="JPL-SSD-sat_phys">
{{cite web
| publisher = [[JPL]] (Solar System Dynamics)
| title = Planetary Satellite Physical Parameters
| date = 24 October 2008
| url = http://ssd.jpl.nasa.gov/?sat_phys_par
| access-date = 12 December 2008
| archive-url= https://web.archive.org/web/20090117082950/http://ssd.jpl.nasa.gov/?sat_phys_par| archive-date= 17 January 2009 | url-status= deviated}}
</ref>

<ref name="Williams 2007 nssdc">
{{cite web
| last = Williams
| first = Dr. David R.
| date = 23 November 2007
| title = Uranian Satellite Fact Sheet
| publisher = [[NASA]] (National Space Science Data Center)
| url = http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html
| access-date = 12 December 2008
}}
</ref>

<ref name="Karkoschka, Hubble 2001">
{{cite journal| doi = 10.1006/icar.2001.6596| last = Karkoschka| first = Erich| author-link = Erich Karkoschka| year = 2001| title = Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope| journal = Icarus| volume = 151| issue = 1| pages = 51–68| bibcode = 2001Icar..151...51K| ref = {{sfnRef|Karkoschka, Hubble|2001}}}}
</ref>

<ref name="IAUC 4168">
{{cite journal
| last = Smith
| first = B. A.
| title = Satellites and Rings of Uranus
| journal = IAU Circular
| volume = 4168
| date = 1986-01-27
| url = http://www.cbat.eps.harvard.edu/iauc/04100/04168.html#Item1
| access-date = 2011-10-31
}}
</ref>

<ref name="Gazetteer">
{{cite web
| title = Planet and Satellite Names and Discoverers
| work = Gazetteer of Planetary Nomenclature
| publisher = USGS Astrogeology
| date = July 21, 2006
| url = http://planetarynames.wr.usgs.gov/Page/Planets
| access-date = 6 August 2006
}}
</ref>

<ref name = "FrenchEtAl2024">
{{Cite journal |last=French |first=Richard G. |last2=Hedman |first2=Matthew M. |last3=Nicholson |first3=Philip D. |last4=Longaretti |first4=Pierre-Yves |last5=McGhee-French |first5=Colleen A. |date=2024-03-15 |title=The Uranus system from occultation observations (1977–2006): Rings, pole direction, gravity field, and masses of Cressida, Cordelia, and Ophelia |url=https://www.sciencedirect.com/science/article/pii/S0019103524000150 |journal=Icarus |volume=411 |pages=115957 |doi=10.1016/j.icarus.2024.115957 |issn=0019-1035|arxiv=2401.04634 }}
</ref>

}}

== External links ==
* [https://web.archive.org/web/20070801203846/http://solarsystem.nasa.gov/planets/profile.cfm?Object=Ura_Bianca Bianca Profile] by [http://solarsystem.nasa.gov NASA's Solar System Exploration]
* [http://www.dtm.ciw.edu/users/sheppard/satellites/urasatdata.html Uranus' Known Satellites] (by [[Scott S. Sheppard]])

{{Uranus}}
{{Moons of Uranus}}
{{Solar System moons (compact)}}

{{DEFAULTSORT:Bianca (Moon)}}
[[Category:Moons of Uranus]]
[[Category:Astronomical objects discovered in 1986|19860123]]
[[Category:Moons with a prograde orbit]]
[[Category:The Taming of the Shrew]]