Prospero (moon)
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Prospero, also known as Uranus XVIII and previously as S/1999 U 3, is an irregular moon of Uranus. It was discovered on 18 July 1999 by Matthew Holman and his team and it was named after the sorcerer
Discovery image of Prospero, taken by the CFHT in July 1999
Jupiter family
243 ida crop
Sycorax (moon)
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Sycorax is the largest irregular moon of Uranus, with a diameter of approximately 157 km. It was discovered on 6 September 1997 on the Hale Telescope in California. Sycorax's orbit is retrograde, irre
Prospero (moon)
…probably did not form near Uranus but was captured by Uranus later. Its orbital parameters suggest that it may belong to the same dynamic cluster as Sycorax and Setebos, suggesting a common origin. However, Sycorax is considerably redder than the other moons, which are predominantly gray. Prospero has not…
Full discovery image of Sycorax, located at the top-right of the image