Sky and Telescope - June 2018 - 39
t RECORD BREAKER Mount Wilson's 60-inch scope saw first light on
December 13, 1908. It was the world's largest functional telescope until
the completion of the observatory's 100-inch scope in 1917.
q HUMANS FOR SCALE Two (unidentified) men stand on the unpolished 200-inch Pyrex mirror disk made by Corning Glass Works for the
Hale Telescope at Palomar Observatory.
6 0 -INCH SCOPE: DENNIS DI CICCO / S&T; MIRROR DISK: UNIV ERSIT Y OF CHICAGO / Y ERK ES
OBSERVATORY; 20 0 -INCH TELESCOPE: PA LO MAR OBSERVATORY / CA LTECH
qq GIGANTIC GLASS The 200-inch Hale Telescope dwarfed the crowd
that gathered at Palomar Observatory on the occasion of the telescope's
dedication on June 3, 1948.
sk yandtelescope.com * J U N E 2 018