71P/Clark

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Updated on February 5, 2022

Profile The brightness evolution is rapid along a 21.5 log r formula. It becomes brightest about one month after the perihelion passage. Kazuo Kinoshita's calculation revealed that the perihelion distance will be increased gradually after this. It is 1.55 A.U. now, but it will be 2.0 A.U. in 2052. Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 71P 2023 Jan. 22 71P 2017 June 30 71P 2011 Dec. 15 71P 2006 June 6 71P 2000 Dec. 2 71P 1995 May 31 71P 1989 Nov. 28 71P 1984 May 29 71P/1978 G1 1978 Nov. 26 71P/1973 L1 1973 May 24

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. Information on the discovery and historical highlights are available at General Comet Info (Gary W. Kronk). Orbital elements in the past and future are calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmtn/0071p.htm).