27P/Crommelin

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Updated on June 24, 2012

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2039 May 27 27P 2011 Aug. 3 27P 1984 Feb. 20 27P/1956 S1 1956 Oct. 25 27P/1928 W1 1928 Nov. 4 1901 May 14 27P/1873 V1 1873 Dec. 2 1845 Sept.29 27P/1818 D1 1818 Feb. 6

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion date in 1901 is calculated using the Minor Planet & Comet Ephemeris Service. The perihelion date of non-observed return in 1845 is calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmtn/0027p.htm).