D/1766 G1 ( Helfenzrieder )

Japanese version
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Updated on July 8, 2017

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* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
.
2021 Nov. 16
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2017 July 16
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2013 Mar. 16
-
2008 Nov. 16
-
2004 July 17
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2000 Mar. 20
-
1995 Dec. 10
-
1991 Aug. 30
-
1987 Mar. 2
-
1982 Sept.27
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1978 Apr. 25
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1973 Nov. 19
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1969 June 11
-
1965 Jan. 5
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1960 Aug. 7
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1956 Mar. 8
-
1951 May 20
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1946 Oct. 1
-
1942 Feb. 14
-
1937 July 1
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1932 Nov. 13
-
1928 Mar. 13
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1923 Oct. 13
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1919 May 16
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1914 Dec. 7
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1910 June 26
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1906 Jan. 15
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1901 Aug. 8
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1897 Feb. 26
-
1892 Sept.11
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1888 May 26
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1884 Feb. 9
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1879 Oct. 3
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1875 May 22
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1871 Jan. 9
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1866 Aug. 31
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1862 Apr. 18
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1857 Dec. 8
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1853 Aug. 9
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1849 Apr. 9
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1844 Oct. 4
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1840 May 21
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1836 Jan. 7
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1831 Aug. 20
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1827 Mar. 28
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1822 Nov. 6
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1818 June 19
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1814 Jan. 29
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1809 Sept. 9
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1805 June 7
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1801 Mar. 5
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1796 Oct. 27
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1792 June 18
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1788 Feb. 9
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1783 Sept.30
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1779 May 18
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1775 Jan. 7
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1770 Sept. 2
! D/1766 G1
1766 Apr. 27

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The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
The perihelion dates since 1770 are calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmt/h66g1.htm).

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