Francisco (moon)

From Simple English Wikipedia, the free encyclopedia
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.
min mean max
~65 K (estimate)
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[change | change source]

References[change | change source]

  1. 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
  2. "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. Retrieved 2006-08-06.

Other websites[change | change source]