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The 60-inch (1.5 m) telescope at Mt. Wilson. For the 60-inch telescope, George Ellery Hale received the 60-inch (1.5 m) mirror blank, cast by Saint-Gobain in France, in 1896 as a gift from his father, William Hale. It was a glass disk 19 cm thick and weighing 860 kg.
The Hale Telescope is a 200-inch (5.1 m), f/ 3.3 reflecting telescope at the Palomar Observatory in San Diego County, California, US, named after astronomer George Ellery Hale. With funding from the Rockefeller Foundation in 1928, he orchestrated the planning, design, and construction of the observatory, but with the project ending up taking 20 ...
He played a major role in designing the mountings and making the mirrors of the Mt. Wilson 60-inch (1.5 m) and 100-inch (2.5 m) telescopes. Hale and Ritchey had a falling-out in 1919, and Ritchey eventually went to Paris where he promoted the construction of very large telescopes.
Normally $80, this boutique-quality floor-length mirror is currently on sale for half-price at just $40. At 59-inches tall, it's big enough to double as a standing mirror but not too oversized to ...
The era of the large glass-mirror reflector had begun, with telescopes such as Andrew Ainslie Common's 1879 36-inch (91 cm) and 1887 60-inch (152 cm) reflectors built at Ealing, and the first of the "modern" large glass-mirror research reflectors, 60-inch (150 cm) Mount Wilson Observatory Hale Telescope of 1908, the 100-inch (2.5 m) Mount ...
Then in 1908, Mount Wilson Observatory matched that size with a 60-inch reflector of their own, and throughout the 20th century, increasingly larger reflectors would be established, aided also by refinements to mirror technology— vapor-deposited aluminum on low-thermal expansion glass, pioneered for the 200 inch (5 meter) Hale telescope of 1948.
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