Rosalind (moon)
- There is also an asteroid called 900 Rosalinde.
The Hubble Space Telescope captured tiny Rosalind orbiting Uranus in 1997 | |
| Discovery | |
|---|---|
| Discovered by | Stephen P. Synnott / Voyager 2 |
| Discovery date | January 13, 1986 |
| Designations | |
Designation | Uranus XIII |
| Pronunciation | /ˈrɒzələnd/ |
| Adjectives | Rosalindian /rɒzəˈlɪndiən/ |
| Orbital characteristics | |
| 69,926.795 ± 0.053 km | |
| Eccentricity | 0.00011 ± 0.000103 |
| 0.558459529 ± 0.000000019 d | |
| Inclination | 0.27876 ± 0.045° (to Uranus's equator) |
| Satellite of | Uranus |
| Physical characteristics | |
| Dimensions | 72 × 72 × 72 km |
| 36 ± 6 km | |
| ~16 000 km2 | |
| Volume | 195 400 km3 ± 31.4% |
| Mass | (1.759±0.552)×1017 kg |
Mean density | 0.5–1.2 g/cm3 0.9 g/cm3 (assumed) |
| synchronous | |
| zero | |
| Albedo | 0.08 ± 0.01 |
Rosalind is an inner satellite of Uranus. It was discovered from the images taken by Voyager 2 on 13 January 1986, and was given the temporary designation S/1986 U 4. 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.
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. Other than its orbit, diameter of 72 km (45 mi), and geometric albedo of 0.08, little is known about Rosalind.
In Voyager 2 imagery, Rosalind appears as an almost spherical object. The ratio of axes of Rosalind's prolate spheroid is 0.8–1.0. Its surface is grey in color.
Rosalind is very close to a 3:5 orbital resonance with Cordelia.