This is a maintenance category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories.

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This category for astronomy articles which are of High importance within astronomy on this scale. See the WikiProject Astronomy importance rating guidelines. Place articles in this category by typing this on the article's talk page:

((WPAstronomy|importance=High))

See also Category:Astronomy articles by quality.