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 1P to 50P
	Designation Name Discovered Last T Next T Period 1P Halley 240 BC 1986 2061 76.01 2P Encke 1786 2003 2007 3.30 3D Biela 1772 1852 Broke up 6.62 4P Faye 1843 1999 2006 7.34 5D Brorsen 1846 1879 Lost 5.46 6P d'Arrest 1851 2002 2008 6.53 7P Pons-Winnecke 1819 2002 2008 6.38 8P Tuttle 1790 1994 2008 13.51 9P Tempel 1 1867 2000 2005 5.51 10P Tempel 2 1873 1999 2005 5.47 11P Tempel-Swift-LINEAR 1869 2001 2007 6.37 12P Pons-Brooks 1812 1954 2024 70.92 13P Olbers 1815 1956 2024 69.56 14P Wolf 1884 2000 2009 8.21 15P Finlay 1886 2002 2008 6.75 16P Brooks 2 1889 2001 2008 6.86 17P Holmes 1892 2000 2007 7.07 18D Perrine-Mrkos 1896 1968 lost? 6.72 19P Borrelly 1904 2001 2008 6.88 20D Westphal 1852 1913 Lost? 61.86 21P Giacobini-Zinner 1900 1998 2005 6.61 22P Kopff 1906 2002 2009 6.45 23P Brorsen-Metcalf 1847 1989 2059 70.54 24P Schaumasse 1911 2001 2009 8.22 25D Neujmin 2 1916 1927 Lost 5.43 26P Grigg-Skjellerup 1902 1997 2008 5.11 27P Crommelin 1818 1984 2011 27.41 28P Neujmin 1 1913 2002 2021 18.19 29P Schwassmann-Wachmann 1 1927 1989 2004 14.85 30P Reinmuth 1 1928 2002 2010 7.32 31P Schwassmann-Wachmann 2 1929 1994 2008 6.39 32P Comas Solá 1926 1996 2005 8.83 33P Daniel 1909 1992 2008 7.06 34P Gale 1927 1938 Lost 10.99 35P Herschel-Rigollet 1788 1939 2092 154.91 36P Whipple 1933 2003 2011 8.51 37P Forbes 1929 1999 2005 6.13 38P Stephan-Oterma 1867 1980 2018 37.71 39P Oterma 1942 2002 2023 19.49 40P Väisälä 1 1939 1993 2004 10.78 41P Tuttle-Giacobini-Kresak 1858 2001 2006 5.43 42P Neujmin 3 1929 1993 2004 10.63 43P Wolf-Harrington 1924 1997 2004 6.46 44P Reinmuth 2 1947 2001 2008 6.64 45P Honda-Mrkos-Pajdusakova 1948 2001 2006 5.25 46P Wirtanen 1948 2002 2008 5.44 47P Ashbrook-Jackson 1948 2001 2008 7.49 48P Johnson 1949 1997 2004 6.97 49P Arend-Rigaux 1951 1998 2005 6.61 50P Arend 1951 1999 2007 8.24
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