Mount Palomar Observatory, 1957

17 images. Mount Palomar Observatory, 5 March 1957. Main dome housing 200 inch telescope; Radio telescope; Robert E. Sears (Observer's assistant); Harley Marshall (Office Manager); Base of 200 inch mirror; General view of visitors.; Supplementary material reads: "Please return unused art to Clausen. Captions for Palomar series: S-95, S-96 -- View of main dome, housing 200 inch telescope. S-41, S-42 -- Radio telescope, with main dome in background. S-11, S-12 -- Robert E. Sears, Observer's assistant, in elevator used to get up to observer's cage atop telescope. S-37, S-40 -- Harley Marshall, Office Manager, at defraction grating used to analyze light from stars so as to calculate distance, chemical composition, etc. S-33, S44 -- General view of base of 200 inch telescope. S-47, S-48 -- View of 200 inch mirror, heart of telescope; It is the honeycombed affair at the bottom of picture. S-25, S-43 -- Robert E. Sears, Observer's Assistant, at control console where coordinates are punched out to put telescope on track of star under observation. S-18 -- Visitors, part of crowd of 500,00 annually who come to Palomar, look at constellation of Andromeda in Addison White Greenway Jr. Astro Museum. Above photos were taken by Geo. Snow under difficult conditions".