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California Historical Society Collection, 1860-1960
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Los Angeles Area Chamber of Commerce Collection 1890-1960
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Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory showing a 48-inch telescope, 1939
(USC DC Image)
Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory showing a 48-inch telescope, 1939
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Description
Photograph of a drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory showing a 48-inch telescope, 1939. In the center of the image, a telescope that looks like a stumpy truncated cone rests on a horseshoe shaped base that supports it through a point of contact on either side of the telescope. To the bottom left, a person slouches in a chair as he looks through the eyepiece of the astronomical insturment. On the bottom right, a man seems to be manipulating the telescope with a control board as he stands next to a steep stairway leading up to a platform.; Photoprint reads: "Because the 200-inch telescope, with its small field of view, cannot explore for interesting objects in the sky, other telescopes on Palomar will serve as scouts. One of these is the 48-inch aperture and 120-inch focal length (F/2.5) scope invented by Bernard Schmidt in Germany fourteen years ago. A single one of its 14x14-inch plates will cover a sky area bout 3,000 times that covered by the 200-inch plate. Note the two guiding telescopes above and below the camera. The camera will be balanced and hung in the fork extension of the polar axial shaft. These smaller scopes will be at work in advance of the 200-inch, enabling the astrologers to map out a program of observations with the large instrument".
Asset Metadata
Title
Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory showing a 48-inch telescope, 1939
Subject
Astronomical instruments
(lcsh),
Mount Palomar Observatory
(subject),
Observatories
(lcsh),
Observatories -- Mount Palomar Observatory
(file heading),
research facilities
(adlf),
Telescopes
(lcsh)
Tags
OAI-PMH Harvest
Place
California
(states),
San Diego
(counties),
USA
(countries)
Temporal Subject
1939
Type
images
Format
1 photograph : photoprint, b&w ; 21 x 26 cm.
(aacr2),
photographic prints
(aat),
photographs
(aat)
Source
California Historical Society
(contributing entity),
California Historical Society Collection, 1860-1960
(collection),
Los Angeles Area Chamber of Commerce Collection, 1890-1960
(subcollection)
Date Created
1939
Creator
Porter, R.W.
(author)
Publisher
University of Southern California. Libraries
(digital)
Repository Email
specol@lib.usc.edu
Repository Name
USC Libraries Special Collections
Repository Location
Doheny Memorial Library, Los Angeles, CA 90089-0189
Rights
Public Domain. Please credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digital Library.
Copyright
Public Domain. Please credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digital Library.
Access Conditions
Send requests to address or e-mail given
Permanent Link (DOI)
https://doi.org/10.25549/chs-m10560
Identifier
42379 (
accession number
), CHS-42379 (
call number
), CHS-42379 (
filename
), chs-m825 (
legacy collection record id
), chs-c65-13705 (
legacy record id
), chs-m10560 (
legacy record id
), USC-2-1-1-10708 (
legacy record id
), 84-1-968 (
microfiche number
), USC (
project
)
IIIF ID
[Document.IIIFV3ID]
DM Record ID
13705
Unique identifier
UC143309
Legacy Identifier
CHS-42379.tiff
Type
Image
Internet Media Type
image/tiff
Resolution
21.1 in × 16.7 in at 300dpi
53.7 cm × 42.4 cm at 300dpi
Inherited Values
Title
Los Angeles Area Chamber of Commerce Collection 1890-1960
Description
The more than 3,600 unique photographs of this collection document the Chamber's promotional efforts during the city's early years. In addition to stock photographs, there are pictures of the elaborate booths and displays that the Chamber prepared for use at state fairs and international trade shows. The photographic collection contains images showing the growth of important municipal enterprises, such as ground transportation systems, aviation, and shipping. In addition there are about 1,000 lantern slides in this collection -- not yet fully digitized.
Date Created
1860/1960
Linked assets
Los Angeles Area Chamber of Commerce Collection 1890-1960
Conceptually similar
Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory showing the 200-inch telescope, looking north, 1938
Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory and a cross-sectional view of the 200-inch telescope, with parts labelled, 1938
Drawing by R.W. Porter showing an astronomer seated at the prime focus of Mount Palomar Observatory's 200-inch telescope, 1940
Drawing by R. W. Porter depicting an interior view of Mount Palomar Observatory and a cross-sectional view of the 200-inch telescope, 1938
Drawing by R.W. Porter depicting an interior view of Palomar Observatory and a cross-sectional view of the vacuum aluminizing chamber of the 200-inch telescope, 1940
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