Desdemona (moon) Saturday, June 20, 2009

There is also a minor planet called 666 Desdemona.

Desdemona
Discovery image of Desdemona
Discovery
Discovered by Stephen P. Synnott / Voyager 2
Discovery date January 13, 1986
Mean orbit radius 62,658.364 ± 0.047 km[1]
Eccentricity 0.00013 ± 0.000070[1]
Orbital period 0.473649597 ± 0.000000014 d[1]
Inclination 0.11252 ± 0.037° (to Uranus' equator)[1]
Satellite of Uranus
Physical characteristics
Dimensions 90 × 54 × 54 km[2]
Mean radius 32.0 ± 4 km[2][3][4]
Surface area ~14,500 km²[5]
Volume ~164,000 km³[5]
Mass ~1.8 × 1017 kg[5]
Mean density ~1.3 g/cm³ assumed[3]
Equatorial surface gravity ~0.011 m/s2[5]
Escape velocity ~0.027 km/s[5]
Rotation period synchronous[2]
Axial tilt zero[2]
Albedo 0.08 ± 0.01[6]
0.07[3][4]
Temperature ~64 K[5]

Desdemona (pronounced /ˌdɛzdɨˈmoʊnə/ DEZ-di-MOE-nə) 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 6.[7] Desdemona is named after the wife of Othello in William Shakespeare's play Othello. It is also designated Uranus X.[8]

Desdemona belongs to Portia Group of satellites, which also includes Bianca, Cressida, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita.[6] These satellites have similar orbits and photometric properties.[6] Unfortunately, other than its orbit,[1] radius of 32 km[2] and geometric albedo of 0.08[6] virtually nothing is known about it.

At the Voyager 2 images Desdemona appears as an elongated object, the major axis pointing towards Uranus. The ratio of axes of Desdemona's prolate spheroid is 0.6 ± 0.3.[2] Its surface is grey in color.[2]

Desdemona may collide with one of its neighboring moons Cressida or Juliet within the next 100 million years.[9]

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