G A R Y W. K R O N K ' S C O M E T O G R A P H Y
Periodic Comets
Seen Once, But Never Recovered
Designation
Name
Discovered
Last T
Next T
Period
D/1766 G1
Helfenzrieder
1766
1766
Lost
4.35
D/1770 L1
Lexell
1770
1770
Lost
5.60
D/1819 W1
Blanpain
1819
1819
Lost
5.10
D/1884 O1
Barnard 1
1884
1884
Lost
5.38
D/1886 K1
Brooks 1
1886
1886
Lost
5.44
D/1894 F1
Denning
1894
1894
Lost
7.40
D/1895 Q1
Swift
1895
1895
Lost
7.20
D/1918 W1
Schorr
1918
1918
Lost
6.67
D/1921 H1
Dubiago
1921
1921
Lost?
62.3
D/1952 B1
Harrington-Wilson
1951
1951
Lost
6.35
D/1977 C1
Skiff-Kosai
1977
1976
Lost
7.54
D/1978 R1
Haneda-Campos
1978
1978
Lost
5.97
D/1993 F2
Shoemaker-Levy 9
1993
1994
Hit Jupiter
17.8
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