D/1894 F1 ( Denning )

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Updated on January 2, 2016

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2025 Jan. 15 2015 Dec. 20 2006 Nov. 15 1998 June 4 1989 Dec. 27 1981 Sept. 1 1973 Mar. 28 1964 Oct. 17 1956 Feb. 3 1947 May 29 1939 June 24 1931 July 23 1923 Sept.13 1916 May 12 1908 Dec. 18 1901 July 15 D/1894 F1 1894 Feb. 9

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion dates since 1901 are calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmt/i94f1.htm).