Rosalind (moon)

:"There is also an asteroid called 900 Rosalinde." Infobox Planet
name = Rosalind
bgcolour = #ffc0c0
discovery = yes
discoverer = Stephen P. Synnott / "Voyager 2"
discovered = January 13, 1986
mean_orbit_radius = 69,926.795 ± 0.053 kmcite journal|last=Jacobson|first=R.A.|title=The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager2 Observations|journal=The Astronomical Journal|url=http://adsabs.harvard.edu/abs/1998AJ....115.1195J|year=1998|volume=115|pages=1195–1199|doi=10.1086/300263]
eccentricity = 0.00011 ± 0.000103
period = 0.558459529 ± 0.000000019 d
inclination = 0.27876 ± 0.045° (to Uranus' equator)
satellite_of = Uranus
physical_characteristics = yes
dimensions = 72 × 72 × 72 kmcite journal|last=Karkoschka|first=Erich|authorlink=Erich Karkoschka|title=Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites|journal=Icarus|volume=151|pages=69–77|year=2001| doi=10.1006/icar.2001.6597|url=http://adsabs.harvard.edu/abs/2001Icar..151...69K]
mean_radius = 36 ± 6 km
surface_area = ~16,000 km²Calculated on the basis of other parameters]
volume = ~200,000 km³
mass = ~2.5e|17 kg
density = ~1.3 g/cm³ "assumed"
surface_grav = ~0.012 m/s²
escape_velocity = ~0.031 km/s
rotation = synchronous
axial_tilt = zero
albedo = 0.08 ± 0.01cite journal|last=Karkoschka|first=Erich|authorlink=Erich Karkoschka|title=Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope|journal=Icarus|volume=151|pages=51–68|year=2001|doi=10.1006/icar.2001.6596| url=http://adsabs.harvard.edu/abs/2001Icar..151...51K]
single_temperature = ~64 K

Rosalind "(roz'-ə-lind," IPAEng|ˈrɒzəlɨnd) is an inner satellite of Uranus. It was discovered from the images taken by "Voyager 2" on 1986-01-13, and was given the temporary designation S/1986 U 4. [cite web|last=Smith|first=B. A.|title=IAU Circular No. 4164|date=January 16 1986|url= http://cfa-www.harvard.edu/iauc/04100/04164.html#Item1|accessdate=2006-08-06] It was named after the daughter of the banished Duke in William Shakespeare's play "As You Like It". It is also designated Uranus XIII.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/append7.html|accessdate=2006-08-06]

Rosalind belongs to Portia Group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Juliet, Cupid, Belinda and Perdita. These satellites have similar orbits and photometric properties. Unfortunately, other than its orbit, radius of 36 km and geometric albedo of 0.08 virtually nothing is known about it.

At the Voyager 2 images Rosalind appears as an almost spherical object. The ratio of axises of the Rosalind's prolate spheroid is 1.0-0.8. Its surface is grey in color.

References

External links

[http://solarsystem.nasa.gov/planets/profile.cfm?Object=Ura_Rosalind Rosalind Profile] by [http://solarsystem.nasa.gov NASA's Solar System Exploration]