The New Zealand Railways Magazine, Volume 13, Issue 5 (August 1, 1938)
(Photo., G. W. Ritchey, Yerkes Observatory.) — The Great Nebula in Andromeda as seen through the 24 inch Yerkes reflector, Sept. 18th, 1901. Exposure, 4 hours
(Photo., G. W. Ritchey, Yerkes Observatory.)
The Great Nebula in Andromeda as seen through the 24 inch Yerkes reflector, Sept. 18th, 1901. Exposure, 4 hours.