17P/Holmes

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Updated on November 15, 2021

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2028 Jan. 31 17P 2021 Feb. 19 17P 2014 Mar. 27 17P 2007 May 4 17P 2000 May 11 17P 1993 Apr. 10 17P 1986 Mar. 14 17P 1979 Feb. 22 17P 1972 Jan. 30 17P/1964 O1 1964 Nov. 15 1957 July 5 1950 Feb. 26 1942 Nov. 5 1935 July 16 1928 Mar. 26 1920 Nov. 20 1913 July 14 17P 1906 Mar. 14 17P/1899 L1 1899 Apr. 28 17P/1892 V1 1892 June 13

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion dates of non-observed returns from 1913 to 1957 are calculated using the Minor Planet & Comet Ephemeris Service.