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
Wikidata facts
- Instance of
- irregular moon
- Named after
- Prospero
- Parent body
- Uranus
- Radius
- 0.040
- Mass
- 99
- Orbital period
- 1978.29
- Image
- Prospero - Uranus moon.jpg
Show 9 more facts
- time of discovery or invention
- 1999-07-18
- discoverer or inventor
- Hans Scholl
- provisional designation
- S/1999 U 3
- orbital eccentricity
- 0.4448
- semi-major axis of an orbit
- 16243000
- orbital inclination
- 152
- volume as quantity
- 65000
- albedo
- 0.040
- Commons category
- Prospero (moon)
via Wikidata · CC0
~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.