71P/Clark

Japanese version
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Updated on June 8, 2013

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* 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
.
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

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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).

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.