Blog: Stare-at-the-universe
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original: https://stare-at-the-universe.tumblr.com/post/175508190584
chaosophia218: Richard Anthony Proctor - Antique Celestial Map, “On the Stereographic Projection”, 1880.“This Celestial Map is showing all the space covered by the six Northern Maps. On the globe the circle 1, 2, 4, 6, 8 and 10 are equal to each