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Francisco (moon)

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(Redirected from S/2001 U3)
Francisco
Discovery
Discovered by
Discovery dateAugust 13, 2001[1][2] (confirmed in 2003[1][3])
Designations
Designation
Uranus XXII
Pronunciation/frænˈsɪsk/[4]
AdjectivesFranciscan, Fransiscian, Francisconian
Orbital characteristics
Mean orbit radius
4,276,000 km[5][6]
Eccentricity0.1459[6]
266.56 d
Inclination145° (to the ecliptic)[5]
Satellite ofUranus
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)
?
?
Albedo0.04 (assumed)[7]
Temperature~65 K (estimate)

Francisco is the innermost irregular satellite of Uranus.

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]

Animation of Francisco's orbit around Uranus.
   Uranus
   Sycorax
   Francisco
   Caliban
   Stephano
   Trinculo

See also

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References

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  1. ^ a b Green, Daniel W. E. (2003-10-07). "IAUC 8216: S/2001 U 3". IAU Circular. Retrieved 2011-01-08.
  2. ^ Blue, Jennifer (2008-10-16). "Planet and Satellite Names and Discoverers". Working Group for Planetary System Nomenclature (WGPSN). Retrieved 2008-12-19.
  3. ^ Sheppard, Scott S. "New Satellites of Uranus Discovered in 2003". Institute for Astronomy at the University of Hawaii. Archived from the original on January 16, 2009. Retrieved 2008-12-19.
  4. ^ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  5. ^ a b Sheppard, Jewitt & Kleyna 2005, p. 523, Table 3.
  6. ^ a b Jacobson, R.A. (2003) URA067 (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Retrieved 2008-01-23.{{cite web}}: CS1 maint: numeric names: authors list (link)
  7. ^ a b Sheppard, Jewitt & Kleyna 2005, p. 523, Table 3 ... ri (km) ... 11 ... i Radius of satellite assuming a geometric albedo of 0.04.
  8. ^ "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. Retrieved 2006-08-06.
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