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The punctuation marks commonly used to denote feet and inches are, in astronomy, used to denote arc minutes and arc seconds. (Apologies if I'm doing this incorrectly.) — Preceding unsigned comment added by 142.167.181.170 ( talk) 20:16, 30 June 2015 (UTC)
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The punctuation marks commonly used to denote feet and inches are, in astronomy, used to denote arc minutes and arc seconds. (Apologies if I'm doing this incorrectly.) — Preceding unsigned comment added by 142.167.181.170 ( talk) 20:16, 30 June 2015 (UTC)