Finlay’s Comet. Photograph I, 1882 Oct. 19d 15h 45m. Exposure 30m, equivalent focus of lens about 11 inches (titre original)

Gill, David (1843-1914), “Finlay’s Comet. Photograph I, 1882 Oct. 19d 15h 45m. Exposure 30m, equivalent focus of lens about 11 inches (titre original),” Bibliothèque numérique - Observatoire de Paris, consulté le 6 novembre 2024, https://bibnum.obspm.fr/ark:/11287/3RKX4.