Desdemona (moon)

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Desdemona
Discovery
Discovered by Stephen P. Synnott / Voyager 2
Discovery time January 13, 1986
Orbit
Avgdistance from the center of its orbital path 62,658.364 ± 0.047 km[1]
How egg-shaped its orbit is
("eccentricity")
0.00013 ± 0.000070[1]
How long it takes to complete an orbit 0.473649597 ± 0.000000014 d[1]
Angle above the reference plane
("inclination")
0.11252 ± 0.037° (to Uranus' equator)[1]
What it orbits Uranus
Size and Other Qualities
Measures 90 × 54 × 54 km[2]
Average distance from its center to its surface 34 ± 4 km[2]
Area of its surface ~14,500 km²[3]
Volume inside it ~164,000 km³[3]
Mass ~2.3×1017 kg[3]
Average density ~1.3 g/cm³ assumed
Gravity at its surface ~0.011 m/s2[3]
Slowest speed able to escape into space
("escape velocity")
~0.027 km/s[3]
How long it takes to turn around one time synchronous[2]
Angle at which it turns
(in relation to its orbit)
zero[2]
How much light it reflects 0.08 ± 0.01[4]
Avg. surface temp. ~64 K[3]
Discovery image of Desdemona

Desdemona is a closer moon to Uranus. It was found from the images taken by Voyager 2 on 1986-01-13, and was given the designation S/1986 U 6.[5] Desdemona is named after the wife of Othello in William Shakespeare's play Othello. It is also designated Uranus X.[6]

Desdemona belongs to Portia Group of moons, which also includes Bianca, Cressida, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita.[4] These moons have similar orbits and photometric properties.[4] Unfortunately, other than its orbit,[1] radius of 34 km[2] and geometric albedo of 0.08[4] almost nothing is known about it.

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

References[change | change source]

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