64P/Swift-Gehrels

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Updated on August 10, 2013

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* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
.
2018 Nov. 3
* 64P
2009 June 14
* 64P
2000 Apr. 21
* 64P
1991 Feb. 22
* 64P
1981 Nov. 27
* 64P/1973 C1
1972 Aug. 31
-
1963 May 31
-
1954 Apr. 3
-
1944 Dec. 24
-
1935 Sept.13
-
1926 June 9
-
1917 May 8
-
1908 Mar. 29
-
1899 Feb. 1
! 64P/1889 W1
1889 Nov. 30

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The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
The perihelion dates of non-observed returns from 1908 to 1963 are calculated using the Minor Planet & Comet Ephemeris Service.
The perihelion date of non-observed return in 1899 is calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmtn/0064p.htm).

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