Juliet (moon) Sunday, June 21, 2009

There is also an asteroid called 1285 Julietta.
Juliet
Miranda
Discovery
Discovered by Stephen P. Synnott / Voyager 2
Discovery date January 3, 1986
Semi-major axis 64,358.222 ± 0.048 km[1]
Eccentricity 0.00066 ± 0.000087[1]
Orbital period 0.493065490 ± 0.000000012 d[1]
Inclination 0.06546 ± 0.040° (to Uranus' equator)[1]
Satellite of Uranus
Physical characteristics
Dimensions 150 × 74 × 74 km[2]
Mean radius 46.8 ± 4 km[2][3][4]
Surface area ~35,000 km²[5]
Volume ~632,000 km³[5]
Mass ~5.6 × 1017 kg[5]
Mean density ~1.3 g/cm³ assumed[3]
Equatorial surface gravity ~0.016 m/s2[5]
Escape velocity ~0.040 km/s[5]
Rotation period synchronous[2]
Axial tilt zero[2]
Albedo 0.08 ± 0.01[6]
Temperature ~64 K[5]

Juliet (pronounced /ˈdʒuːliət/ JEW-lee-ət, or /ˌdʒuːliˈɛt/ JEW-lee-ET) is an inner satellite of Uranus. It was discovered from the images taken by Voyager 2 on 1986-01-03, and was given the temporary designation S/1986 U 2.[7] It is named after the heroine of William Shakespeare's play Romeo and Juliet. It is also designated Uranus XI.[8]

Juliet belongs to Portia Group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Rosalind, Cupid, Belinda and Perdita.[6] These satellites have similar orbits and photometric properties.[6] Unfortunately, other than its orbit,[1] radius of 53 km[2] and geometric albedo of 0.08[6] virtually nothing is known about it.

At the Voyager 2 images Juliet appears as an elongated object, the major axis pointing towards Uranus. The ratio of axises of the Juliet's prolate spheroid is 0.5 ± 0.3, which is rather an extreme value.[2] Its surface is grey in color.[2]

Juliet may collide with Desdemona within the next 100 million years.[9]

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