Photograph of the Nebula in Orion, taken by Professor Henry Draper, M.D., March 14th, 1882. Exposure 137 minutes (titre original)

inconnu, “Photograph of the Nebula in Orion, taken by Professor Henry Draper, M.D., March 14th, 1882. Exposure 137 minutes (titre original),” Bibliothèque numérique - Observatoire de Paris, consulté le 3 mai 2024, https://bibnum.obspm.fr/ark:/11287/2LtTm.