D/1918 W1 ( Schorr )

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Updated on May 10, 2016

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2024 Sept. 14 2016 Mar. 28 2007 Sept.22 1999 Apr. 5 1990 Dec. 25 1982 Dec. 21 1974 Dec. 23 1967 Apr. 19 1960 Mar. 15 1953 Feb. 13 1946 Jan. 8 1938 Nov. 29 1931 Dec. 18 1925 May 18 D/1918 W1 1918 Sept.30

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion dates since 1925 are calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmt/j18w1.htm).