Stephano (moon)
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Stephano, also known as Uranus XX and previously as S/1999 U 2, is an irregular moon of Uranus. It was discovered on 18 July 1999 by Brett J. Gladman et al. and it was named after the drunken butler i
Discovery image of Stephano (encircled)
Jupiter family
243 ida crop
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
Stephano (moon)
…estimated to have a diameter of 32 km (20 mi), though most of its physical properties are unknown. Stephano was discovered on 18 July 1999, together with Prospero and Setebos, by Brett J. Gladman et al. When the discovery of Stephano was announced, it was given the temporary provisional designation S/1999 U 2 by…
Discovery image of Prospero, taken by the CFHT in July 1999