Glass positive:- a portion of the Moon (Tycho to P

Made:
1919; 1929 in Mount Wilson
maker:
Hinton and Co.

Glass positive:- a portion of the Moon (Tycho to Ptolemaus), Mount Wilson Observatory, 1919, September 15, age 21 1/2 days, 100-inch Reflector, equivalent focal length, 134 ft, 16" x 20"

Details

Category:
Astronomy
Object Number:
1929-766
type:
black-and-white transparencies
credit:
Hinton and Co.