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| Description: (c) A Newtonian telescope uses a flat mirror, called the secondary mirror, to send light toward the side of the telescope. The light rays are made parallel again by passing through a lens, called the eyepiece. The dashed line shows where the focal point of this primary mirror would be if the secondary mirror were not in the way Picture Stats: Views: 549 Filesize: 109.09kB Height: 900 Width: 531 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=15869 |