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Combined display of all available logs of Citizendium. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).
- 20:58, 5 April 2024 John Leach talk contribs deleted page Baker-Nunn camera/Definition (content was: "<noinclude>{{Subpages}}</noinclude> First-generation electro-optical telescope and camera system, used for space surveillance by the United States Air Force, and a major part of Smithsonian Institution satellite tracking from the initial International Geophysical Year launches onward; deployed in a worldwide network")