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Setebos (pronounced /ˈsɛtɨbʌs/ SET-ə-bus) is one of the outermost retrograde irregular satellites of Uranus. It was discovered on 18 July 1999 by John J. Kavelaars et al. and provisionally designated S/1999 U 1.[4]

Confirmed as Uranus XIX it is named after the god worshipped by Caliban and Sycorax in William Shakespeare's play The Tempest.

The orbital parameters suggest that it may belong, together with Sycorax and Prospero to the same dynamic cluster, suggesting common origin.[5] However, this suggestion does not appear to be supported by the observed colours. The satellite appears neutral (grey) in the visible light (colour indices B-V=0.77, R-V=0.35),[6] similar to Prospero but different from Sycorax (which is light red).

See also

* Uranus' natural satellites
* irregular satellites
* Patagonia


References

1. ^ a b 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 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) ... 24 ... 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. ^ Grav, Tommy; Holman, Matthew J.; Gladman, Brett J.; Aksnes, Kaare Photometric survey of the irregular satellites,Icarus, 166,(2003), pp. 33-45. Preprint
6. ^ Tommy Grav, Matthew J. Holman, and Wesley C. Fraser Photometry of Irregular Satellites of Uranus and Neptune,The Astrophysical Journal, 613, (2004), pp. L77–L80. Preprint


External links

* Setebos Profile (by NASA's Solar System Exploration)
* David Jewiit pages
* Uranus' Known Satellites (by Scott S. Sheppard)
* Ephemeris

Moons of Uranus

Astronomy Encyclopedia

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