Glass positive:- Milky way (region of 0 Ophiuchi)

Made:
1921 in Mount Wilson

Glass positive:- Milky way (region of 0 Ophiuchi), Dark Nebula, Barnard 72, R.A., 17h 19m, decl, -23 degrees 39' Mount Wilson Observatory 1921, July 4, 100-inch Reflector, focal length, 42ft, exposure, 2 3/4 hours, 17" x 14"

Details

Category:
Astronomy
Object Number:
1929-769
type:
nebulae
credit:
Hinton and Co.