22P/Kopff

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Updated on November 1, 2025

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 22P 2028 June 28 22P 2022 Mar. 18 22P 2015 Oct. 25 22P 2009 May 25 22P 2002 Dec. 12 22P 1996 July 2 22P 1990 Jan. 20 22P 1983 Aug. 10 22P 1977 Mar. 7 22P 1970 Oct. 2 22P 1964 May 16 22P 1958 Jan. 20 22P 1951 Oct. 20 22P 1945 Aug. 11 22P 1939 Mar. 13 22P 1932 Aug. 21 22P 1926 Jan. 28 22P/1919 O1 1919 June 28 1912 Nov. 25 22P/1906 Q1 1906 May 3

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion date in 1912 is calculated using the Minor Planet & Comet Ephemeris Service.