Finlay’s Comet. Photograph II, 1882 Oct. 20d 15h 30m. Exposure 60m, equivalent focus of lens about 11 inches (titre original)

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Gill, David (1843-1914), “Finlay’s Comet. Photograph II, 1882 Oct. 20d 15h 30m. Exposure 60m, equivalent focus of lens about 11 inches (titre original),” Bibliothèque numérique - Observatoire de Paris, consulté le 6 novembre 2024, https://bibnum.obspm.fr/ark:/11287/14Mjv.