Sixty-foot tower telescope at Mount Wilson Observatory, ca.1930

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Title	Sixty-foot tower telescope at Mount Wilson Observatory, ca.1930
Description	Photograph of the sixty-foot tower telescope at Mount Wilson Observatory, ca.1930. The 60-foot metal framework surrounds a small house, which was probably used as a research facility. An elevator (or parts of the telescope?) protrudes from the center of the house and extends to the top of the tower where a dome structure is perched. A man(?) stands inside the dome structure. A smaller tower structure is visible beyond the trees at left. The area is surrounded by trees. Picture file card reads: "the spectroscope used with this new form of telescope is mounted in a wall 80 feet deep in the earth beneath the town".; "Solar astronomy at Mt. Wilson Observatory has a rich history. There is probably no historical event that can be singled out as the most important solar discovery of the 20th Century, but Mt. Wilson has been home to some of the greatest scientific achievements. In addition to having the largest photographic archive of white-light images of the sun, and having the distinction of being the first solar telescope to be built on a tower, the 60- Foot Solar Tower is home to two of the most important discoveries in the field of solar research: George Ellery Hale's discovery of magnetic fields and Robert Leighton's pioneering work in helioseismology. The mountain is host to several ongoing observing projects using the onsite facilities. The observatory has two primary nighttime telescopes: the 60-inch telescope, built in 1908, is home to the HK Project; the 100-inch (Hooker) telescope, built in 1917, has a new instrument for Adaptive Optics. Two solar observatories have been in operation since the early days of the Observatory. The 60-foot tower telescope, operated by USC, is part of a worldwide network monitoring helioseismology. The 150-foot tower telescope, operated by UCLA, investigates long-term changes of solar magnetic activity." -- unknown author.
Subject	Mount Wilson Observatory
Subject (adlf)	research facilities
Subject (file heading)	Observatories -- Mount Wilson Observatory
Subject (lcsh)	Observatories Telescopes Astronomical instruments
Geographic subject (county)	Los Angeles
Geographic subject (state)	California
Geographic subject (country)	USA
Coverage date	circa 1930
Photographer	Pierce, C.C. (Charles C.), 1861-1946
Publisher (of the digital version)	University of Southern California. Libraries
Date created	circa 1930
Type	images
Format	glass plate negatives
Format (aacr2)	2 photographs : glass photonegative, photoprint, b&w ; 26 x 21 cm.
Format (aat)	photographic prints photographs
Accession number	5671
Call number	CHS-5671
Microfiche number	1-100-11
Legacy record ID	chs-m10580; USC-1-1-1-10729
Part of collection	California Historical Society Collection, 1860-1960
Part of subcollection	Title Insurance and Trust, and C.C. Pierce Photography Collection, 1860-1960
Project	USC
Rights	California Historical Society
Access conditions	Send requests to address or e-mail given. Phone (213) 821-2366; fax (213) 740-2343.
Repository name	USC Libraries Special Collections
Repository address	Doheny Memorial Library, Los Angeles, CA 90089-0189
Repository email	specol@usc.edu
Filename	CHS-5671
Full text	$ »
Archival file	chs_Volume91/CHS-5671.tiff

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Sixty-foot tower telescope at Mount Wilson Observatory, ca.1930

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