Tomorrow April 10 marks the 85th anniversary of the Hale Telescope 200-inch mirror blank arriving to Caltech from Corning NY, where it was cast. The largest (future) telescope mirror in the world had traveled for 16 days, 3400 miles across the United States by rail. It was a journey that captured the public’s imagination—thousands would stand along the route to watch the “Big Eye” go by. The Pyrex 200-inch disk arrived safely at Caltech on April 10, 1936. To celebrate the anniversary of this Pal

The Hale Telescope is used every night for astronomical research thanks to a modern and evolving instrument suite. Hale Telescope instruments provide a wide range of imaging and spectroscopic capabilities in the optical and near-infrared parts of the electromagnetic spectrum. https://sites.astro.caltech.edu/palomar/about/telescopes/hale.html#instruments | Palomar Observatory

11 reactions | About the legendary telescope at Palomar Mountain. Video for Palomar Observatory and its bilingual virtual tour: https://www.astro.caltech.edu/palomar/visitor/media/palomartour/ | Palomar Observatory | Facebook