Francisco (moon)
moon of Uranus
| Discovery | |||||||
|---|---|---|---|---|---|---|---|
| Discovered by | Matthew J. Holman, John J. Kavelaars, Dan Milisavljevic, and Brett J. Gladman | ||||||
| Discovered in | August 13, 2003 | ||||||
| Orbital characteristics | |||||||
| Semi-major axis | 4,276,000 km | ||||||
| Eccentricity | 0.1459 | ||||||
| Orbital period | 266.56 d | ||||||
| Inclination | 145° (to the ecliptic)[1] | ||||||
| Is a moon of | Uranus | ||||||
| Physical characteristics | |||||||
| Mean diameter | ~22 km (estimate)[1] | ||||||
| Surface area | ~1500 km² (estimate) | ||||||
| Volume | ~6000 km³ (estimate) | ||||||
| Mass | 1.4×1015 kg (estimate) | ||||||
| Mean density | ~1.5 g/cm³ (estimate) | ||||||
| Surface gravity | ~0.0025 m/s2 (estimate) | ||||||
| Escape velocity | ~0.0055 km/s (estimate) | ||||||
| Rotation period | ? | ||||||
| Axial tilt | ?° | ||||||
| Albedo | 0.04 (assumed)[1] | ||||||
| Surface temp. |
| ||||||
| Atmospheric pressure | 0 kPa | ||||||
Francisco is the closest non-spherical moon of Uranus.
Francisco was found by Matthew J. Holman, et al. and Brett J. Gladman, et al. in 2003 from pictures taken in 2001 and given the designation S/2001 U 3. Confirmed as Uranus XXII, it was named after a lord in William Shakespeare's play The Tempest.[2]
Related pages
changeReferences
change- ↑ 1.0 1.1 1.2 Scott S. Sheppard, David C. Jewitt, and Jan Kleyna An Ultradeep Survey for Irregular Satellites of Uranus: Limits to Completeness, The Astronomical Journal, 129 (2005), pages 518–525 . Preprint
- ↑ "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. Retrieved 2006-08-06.
Other websites
change- Francisco profile Archived 2007-08-01 at the Wayback Machine by Solar System Exploration
- David Jewitt pages
- Scott Sheppard pages
