25D/Neujmin 2

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Updated on August 11, 2025

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2031 Feb. 24 2025 May 11 2019 Aug. 18 2014 Mar. 12 2008 Oct. 14 2003 May 26 1998 Jan. 7 1992 Aug. 20 1987 Apr. 2 1981 Nov. 12 1976 June 18 1971 Jan. 7 1965 July 16 1959 Dec. 19 1954 May 6 1948 Oct. 9 1943 Apr. 27 1937 Nov. 20 1932 June 17 25D/1926 V2 1927 Jan. 16 1921 Aug. 15 25D/1916 D1 1916 Mar. 11

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion dates in 1921 and since 1932 are calculated using the Minor Planet & Comet Ephemeris Service.