Fig. 3
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Comet C/1874 H1 (Coggia). The leftmost panel shows the observations on June 10, 1874 (a), and July 9, 1874 (b). Central panel (c) and rightmost panel (d) show the simulations corresponding to images (a) and (b), respectively. In panel (c) the image dimensions are 3 144 105 × 5 620 050 km, and in panel (d) they are 614 693 × 1 099 800 km projected on the sky. The figure in the leftmost panel is from Wikipedia3, by Robert Stawell Ball (1840–1913). It is in the public domain, via Wikimedia Commons.
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