Stephano

Stephano (pronounced /ˈstɛfənoʊ/ STEF-ə-noh or /stɨˈfɑːnoʊ/ stə-FAH-noh) is a retrograde irregular satellite of Uranus. It was discovered by Brett J. Gladman, et al. in 1999, and given the provisional designation S/1999 U 2.[4][5][6][7][8]

Confirmed as Uranus XX, it was named after the drunken butler in William Shakespeare's play The Tempest on 2000 August.[9]

The orbital parameters suggest that it may belong, together with Caliban to the same dynamic cluster, suggesting common origin.[10]

See also

* Uranus' natural satellites
* irregular satellites


References

1. ^ Sheppard 2005, p. 523
2. ^ a b Donald K. Yeomans (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. http://ssd.jpl.nasa.gov/?sat_elem#uranus. Retrieved 2008-01-19.
3. ^ a b c Sheppard, Scott S.; David C. Jewitt, Jan Kleyna (2005). "An Ultradeep Survey for Irregular Satellites of Uranus: Limits to Completeness". The Astronomical Journal 129 (1): 518–525. http://arxiv.org/abs/astro-ph/0410059. Retrieved 20 October 2009. "Table 3 ... ri (km) ... 16 ... i Radius of satellite assuming a geometric albedo of 0.04.".
4. ^ B. Gladman, JJ Kavelaars, Matthew J. Holman, J-M. Petit, H. Scholl, P. Nicholson, J. A. Burnse The Discovery of Uranus XIX, XX, and XXI, Icarus, 147 (2000), pp. 320–324
5. ^ Marsden, Brian G., Probable New Satellites of Uranus, IAUC 7230, 1999 July 27
6. ^ Marsden, Brian G., Probable New Satellites of Uranus, IAUC 7248, 1999 September 4
7. ^ Marsden, Brian G., S/1999 U 1, S/1999 U 2 and S/1999 U 3, IAUC 7385, 2000 March 24
8. ^ Marsden, Brian G., S/1999 U 2, IAUC 7473, 2000 August 5
9. ^ Marsden, Brian G., Satellites of Uranus, IAUC 7479, 2000 August 21
10. ^ Grav, Tommy; Holman, Matthew J.; Gladman, Brett J.; Aksnes, Kaare Photometric survey of the irregular satellites,Icarus, 166 (2003), pp. 33-45. Preprint


External links

* Stephano Profile by NASA's Solar System Exploration
* David Jewitt pages
* Uranus' Known Satellites (by Scott S. Sheppard)
* Ephemeris IAU-NSES

Moons of Uranus

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