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Periodic Comets
Seen Once, But Never Recovered

DesignationNameDiscoveredLast TNext TPeriod
D/1884 O1Barnard 118841884Lost5.38
D/1819 W1Blanpain18191819Lost5.10
D/1886 K1Brooks 118861886Lost5.44
D/1894 F1Denning18941894Lost7.40
D/1921 H1Dubiago19211921Lost?62.3
D/1978 R1Haneda-Campos19781978Lost5.97
D/1952 B1Harrington-Wilson19511951Lost6.35
D/1766 G1Helfenzrieder17661766Lost4.35
D/1770 L1Lexell17701770Lost5.60
D/1918 W1Schorr19181918Lost6.67
D/1993 F2Shoemaker-Levy 919931994Hit Jupiter17.8
D/1977 C1Skiff-Kosai19771976Lost7.54
D/1895 Q1Swift18951895Lost7.20

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