Francisco (moon)
Francisco is the innermost irregular satellite of Uranus.
| Discovery | |
|---|---|
| Discovered by |
|
| Discovery date | August 13, 2001 (confirmed in 2003) |
| Designations | |
Designation | Uranus XXII |
| Pronunciation | /frænˈsɪskoʊ/ |
| Adjectives | Franciscan, Fransiscian, Francisconian |
| Orbital characteristics | |
Mean orbit radius | 4,276,000 km |
| Eccentricity | 0.1459 |
Orbital period (sidereal) | 266.56 d |
| Inclination | 145° (to the ecliptic) |
| Satellite of | Uranus |
| Physical characteristics | |
Mean radius | 11 km (estimate) |
Surface area | ~1,500 km2 (estimate) |
| Volume | ~6,000 km3 (estimate) |
| Mass | ~7.2×1015 kg (estimate) |
Mean density | ~1.3 g/cm3 (assumed) |
Surface gravity | ~0.0025 m/s2 (estimate) |
| ~0.0094 km/s (estimate) | |
Synodic rotation period | ? |
| ? | |
| Albedo | 0.04 (assumed) |
| Temperature | ~65 K (estimate) |
Francisco was discovered by Matthew J. Holman, et al. and Brett J. Gladman, et al. in 2003 from pictures taken in 2001 and given the provisional designation S/2001 U 3. Confirmed as Uranus XXII, it was named after a lord in William Shakespeare's play The Tempest.
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