File:Prospero_-_Uranus_moon.jpg · Wikimedia Commons · See Wikimedia Commons
Key facts
- Discovered by
- John J. Kavelaars Brett J. Gladman Matthew J. Holman Jean-Marc Petit Hans Scholl
- Discovery date
- 18 July 1999
- Designation
- Uranus XVIII
- Pronunciation
- / ˈ p r ɒ s p ɛ r oʊ /
- Adjectives
- Prosperonian / p r ɒ s p ɛ ˈ r oʊ n i ə n / , Prosperian / p r ɒ ˈ s p ɪər i ə n /
- Mean orbit radius
- 16,256,000 km
- Orbital period sidereal
- 1978.29 d
- Inclination
- 152° (to the ecliptic )
- Satellite of
- Uranus
- Mean diameter
- 50 km , <50 km
- Synodic rotation period
- 7.145 ± 0.092 h
- Albedo
- 0.04 (Assumed) , >0,03
- Apparent magnitude
- 23,2
- Absolute magnitude h
- 10,6
via Wikipedia infobox
~3 min read
Encyclopedic overview
Prospero, also known as Uranus XVIII, is one of the largest retrograde irregular satellites of Uranus.
Animation of discovery images to show Prospero's motion among background stars
Excerpted from Wikipedia’s “Prospero” article, available under the CC BY-SA 4.0 licence.