File:UofI photoelectric photometer 1913 mount on refractor.jpg

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UofI_photoelectric_photometer_1913_mount_on_refractor.jpg ‎(350 × 446 pixels, file size: 14 KB, MIME type: image/jpeg)

Description photoelectric photometer mount on refractor, 1913, University of Illinois Observatory
Date
Source National Park Service
Author Dr. John Dickel
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(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current08:51, 18 August 2010Thumbnail for version as of 08:51, 18 August 2010350 × 446 (14 KB)XIIIfromTOKYO{{Information |Description=photoelectric photometer mount on refractor, 1913, University of Illinois Observatory |Source=National Park Service |Date=1913 |Author=Dr. John Dickel |Permission={{PD-USGov-Interior-NPS}} |other_versions= }} [[Category:Universi
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