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Moon of Uranus From Wikipedia, the free encyclopedia
Francisco is the innermost irregular satellite of Uranus.
Discovery | |
---|---|
Discovered by | |
Discovery date | August 13, 2001[1][2] (confirmed in 2003[1][3]) |
Designations | |
Designation | Uranus XXII |
Pronunciation | /frænˈsɪskoʊ/[4] |
Adjectives | Franciscan, Fransiscian, Francisconian |
Orbital characteristics | |
Mean orbit radius | 4,276,000 km[5][6] |
Eccentricity | 0.1459[6] |
266.56 d | |
Inclination | 145° (to the ecliptic)[5] |
Satellite of | Uranus |
Physical characteristics | |
11 km (estimate)[7] | |
~1,500 km2 (estimate) | |
Volume | ~6,000 km3 (estimate) |
Mass | ~7.2×1015 kg (estimate) |
Mean density | ~1.3 g/cm3 (assumed) |
~0.0025 m/s2 (estimate) | |
~0.0094 km/s (estimate) | |
? | |
? | |
Albedo | 0.04 (assumed)[7] |
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.[8]
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