80P/Peters-Hartley

Japanese version
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Updated on July 25, 2015

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* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
.
2022 Dec. 8
* 80P
2014 Nov. 10
-
2006 Sept. 25
* 80P
1998 Aug. 11
* 80P
1990 June 23
* 80P/1982 N1
1982 May 8
-
1974 Apr. 5
-
1966 Feb. 23
-
1958 Jan. 19
-
1950 Jan. 7
-
1941 Dec. 8
-
1933 Nov. 12
-
1925 Nov. 18
-
1917 Oct. 30
-
1909 Oct. 10
-
1901 Nov. 5
-
1893 Nov. 4
-
1885 Nov. 3
-
1877 Dec. 21
-
1870 Jan. 12
-
1862 Feb. 1
-
1854 Apr. 15
! 80P/1846 M1
1846 June 3

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The apparition in 2006 is observed by Michael Jager & Gerald Rhemann.
printed on Forum.sci.hr.
The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
The perihelion dates of non-observed returns from 1854 to 1974 are calculated by Kenji Muraoka.

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