Margaret (moon)
Moon of Uranus / From Wikipedia, the free encyclopedia
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Margaret is the only known prograde irregular satellite of the moons of Uranus. It was discovered by Scott S. Sheppard, et al. in 2003 and given the provisional designation S/2003 U 3.[8]
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | |
Discovery date | August 29, 2003[1][2] |
Designations | |
Designation | Uranus XXIII |
Pronunciation | /ˈmɑːrɡərət/[3] |
Adjectives | Margaretian /ˌmɑːrɡəˈrɛtiən/[4] |
Orbital characteristics | |
Mean orbit radius | 14,345,000 km[5][6] |
Eccentricity | 0.6608[6] (mean) |
1687.01 d | |
Inclination | 57° (to the ecliptic)[5] |
Satellite of | Uranus |
Physical characteristics | |
Mean radius | 10 km (estimate)[7] |
~1,300 km2 (estimate) | |
Volume | ~4,200 km3 (estimate) |
Mass | ~5.5×1015 kg (estimate) |
Mean density | ~1.3 g/cm3 (assumed) |
~0.0023 m/s2 (estimate) | |
~0.0085 km/s (estimate) | |
? | |
? | |
Albedo | 0.04 (assumed)[7] |
Temperature | ~65 K (estimate) |
Close
Confirmed as Uranus XXIII, it was named after the servant of Hero in William Shakespeare's play Much Ado About Nothing.[1] The name was also chosen to match the name of Sheppard's mother.[9]