which tool was used to discover the rings?
Kuiper Airborne Observatory
Rings of Uranus
The definitive discovery of the Uranian rings was made by astronomers James L. Elliot, Edward W. Dunham, and Jessica Mink on March 10, 1977, using the Kuiper Airborne Observatory, 
what is rings of uranus? Are intermediate in complexity between the more extensive set around Saturn and the simpler systems around Jupiter and Neptune. how many rings does this planet have? 13 when was the first time it was discovered? 1978 who discovered it? James L. Elliot, Edward W. Dunham, and Jessica Mink. where is the first person from? America apart from uranus has he discovered any other planets? Yes, discovered seven minor planets. and where is the third person from? Lincoln, Nebraska and has she also discovered anything else apart from the former planet? She did work that contributed to the discovery of the rings of Neptune.
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Rings of Uranus [SEP] Discovery
It has been claimed that Herschel gave accurate descriptions of the ε ring's size relative to Uranus, its changes as Uranus travelled around the Sun, and its color. The definitive discovery of the Uranian rings was made by astronomers James L. Elliot, Edward W. Dunham, and Jessica Mink on March 10, 1977, using the Kuiper Airborne Observatory, and was serendipitous. They planned to use the occultation of the star SAO 158687 by Uranus to study the planet's atmosphere. When their observations were analysed, they found that the star disappeared briefly from view five times both before and after it was eclipsed by the planet.