| Comet | Discover |Year |Period | %------------------------------------------------------------------ | 1P/Halley | Halley |1758 | 76.09 | | 2P/Encke | Encke |1786 | 3.30 | | 3D/Biela | Biela |1826 | 6.62 | | 4P/Faye | Faye |1843 | 7.55 | | 5D/Brorsen | Brorsen |1846 | 5.46 | | 6P/d'Arrest | d'Arrest |1851 | 6.54 | | 7P/Pons-Winnecke | Pons \& Winnecke |1819 | 6.36 | | 8P/Tuttle | Tuttle |1858 | 13.58 | | 9P/Tempel | Tempel |1867 | 5.52 | | 10P/Tempel | Tempel |1873 | 5.38 | | 11P/Tempel-Swift-LINEAR | Tempel, Swift \& LINEAR |1869 | 6.37 | | 12P/Pons-Brooks | Pons \& Brooks |1812 | 70.85 | | 13P/Olbers | Olbers |1815 | 69.5 | | 14P/Wolf | Wolf |1884 | 8.74 | | 15P/Finlay | Finlay |1886 | 6.50 | | 16P/Brooks | Brooks |1889 | 6.14 | | 17P/Holmes | Holmes |1892 | 6.89 | | 18D/Perrine-Mrkos | Perrine \& Mrkos |1896 | | | 19P/Borrelly | Borrelly |1904 | 6.85 | | 20D/Westphal | Westphal |1852 | 61.8 |