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Arc second
editShould we replace the abbreviation " with arc second? RJFJR (talk) 20:20, 12 April 2008 (UTC)
This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
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Should we replace the abbreviation " with arc second? RJFJR (talk) 20:20, 12 April 2008 (UTC)