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
type:
nebulae
credit:
Hinton and Co.