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Discovery of Uranus' rings

Discovery of Uranus' rings
Discovery of Uranus' rings Brightness of a background star observed from Kuiper Airborne Observatory in 1977 as Uranus was approaching it, showing sharp dips when five of Uranus' narrow rings swept across the star as seen from the observatory. Adapted from Elliot et al. (1977)

Adapted from Elliot et al. (1977).