A tiny, moving point of light. Copies of the Photographs use for the discovery of Pluto. Credit: Lowell Observatory. January 1930ItchyK t1_j6h40co wrote
Reply to comment by BlazeObsidian in A tiny, moving point of light. Copies of the Photographs use for the discovery of Pluto. Credit: Lowell Observatory. January 1930 by Aeromarine_eng
They would switch back and forth between multiple photos of the same spot. Makes it way easier to see differences. Although I do believe he went through hundreds, if not thousands of images looking for a tiny dot moving.
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