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WikiProject Astronomy (Rated Start-class, Mid-importance)
WikiProject icon Durchmusterung is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.
Start-Class article Start  This article has been rated as Start-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.

Arc second[edit]

Should we replace the abbreviation " with arc second? RJFJR (talk) 20:20, 12 April 2008 (UTC)