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| Description: (a) Light from a star is reduced as the rings move in front of it. (b) With sensitive light detectors, astronomers can detect the variation in light intensity. Such dimming led to the discovery of Uranus’s rings. Of course, the star vanishes completely when Uranus occults it. Picture Stats: Views: 698 Filesize: 245.4kB Height: 900 Width: 1212 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18219 |