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The 100-inch Hooker telescope at Mt Wilson fundamentally changed the scientific view of the Universe Hooker Telescope enclosure. The 100-inch (2.5 m) Hooker telescope located at Mount Wilson Observatory, California, was completed in 1917, and was the world's largest telescope until 1949.
It is the location of the Mount Wilson Observatory, which is an important astronomical facility in Southern California with historic 60-inch (1,524 mm) and 100-inch (2,540 mm) aperture telescopes, and 60-foot (18.3 m) and 150-foot (45.7 m) tall solar towers.
Docent Tim Thompson, right, gives students from USC a tour inside the 100-inch telescope at Mt. Wilson Observatory above Los Angeles. (Mel Melcon / Los Angeles Times)
200 inch 508 cm 1949 USA: Hooker Telescope Mount Wilson Obs. 100 inch 254 cm 1917 USA: McDonald Obs. 82 inch i.e. Otto Struve Telescope: 82 inch 208 cm 1939 USA: David Dunlap Observatory: 74 inch 188 cm 1935 Canada: Plaskett telescope Dominion Astrophysical Obs. 72 inch 182 cm 1918 Canada: 69-inch Perkins Telescope [10] Perkins Observatory: 69 inch
In 1908 he became an astronomer and instrument maker at the Mount Wilson Observatory. Among his designs was the 100-inch (2,500 mm) telescope at that observatory, and a 50-foot (15 m) interferometer that he used to measure star diameters. Gene Shoemaker used Pease's high quality photographs of the Moon to make its first geologic map. [1]
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.
This isn’t the first time Mt. Wilson has been threatened by fire, most notably by the Station fire in 2009, which burned more than 160,000 acres in the Angeles National Forest.
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