Francisco (moon)

+ Francisco 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)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 Is a moon of Uranus Physical characteristics Mean diameter ~22 km (estimate) Surface area ~1500 km² (estimate) Volume ~6000 km³ (estimate) Mass 1.4 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) 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.

Related pages
 List of Uranus' moons

 References 

 Ephemeris IAU-NSES
 Mean orbital parameters NASA JPL

 Other websites 
 Francisco profile  by Solar System Exploration
 David Jewitt pages
 Scott Sheppard pages

Category:Uranus' moons