Glass positive:- "Horses head" dark Nebula in Orion

Made:: 1920 in Mount Wilson

photographer:: John C. Duncan

maker:: Hinton and Co.

Glass positive:- "Horses head" dark Nebula in Orion, dark nebulosity south of Zeta (G) Orionis, by John C. Duncan, Mount Wilson Observatory, 1920, November 13, 100-inch reflector, focal length, 42ft, exposure, 3 hours, 14" x 17"

Details

Category:: Astronomy

Object Number:: 1929-767

Materials:: glass

type:: black-and-white transparencies, astrophotographs and nebulae

credit:: Hinton and Co.

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