Ｐ ： 軌道週期（Orbital period）
ｑ ： 近日點距離（Perihelion distance in AU）
ｅ ： 軌道偏心率（Orbital eccentricity）
ω ： 近日點與昇交點之夾角（The J2000.0 argument of perihelion）
Ω ： 昇交點黃經度（The J2000.0 longitude of the ascending node）
ｉ ： 黃道面傾斜角（The J2000.0 inclination）
A Ｐ ｑ ｅ ω Ω ｉ 發現年份 上次回歸 下次回歸
 1P/Halley 76.00 0.587 0.967 111.8 58.8 162.2 -239 1986 2062
 2P/Encke 3.30 0.339 0.847 186.5 334.6 11.8 1786 2000 2003
 3D/Biela 6.62
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 1772 1852 -
 4P/Faye 7.52 1.657 0.568 205.0 199.3 9.0 1843 1999 2006
 5D/Brorsen 5.46
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-
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 1846 1879 -
 6P/d'Arrest 6.39 1.291 0.624 177.0 139.4 19.4 1678 1995 2002
 7P/Pons-Winnecke 6.38 1.260 0.633 172.3 93.4 22.2 1819 1996 2002
 8P/Tuttle 13.50 0.997 0.824 206.7 270.5 54.6 1790 1994 2008
 9P/Tempel 1 5.51 1.500 0.519 178.9 69.0 10.5 1867 2000 2005
10P/Tempel 2 5.48 1.482 0.523 195.0 118.2 12.0 1873 1999 2005
11D/Tempel-Swift 5.68
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 1869 1908 -
12P/Pons-Brooks 70.90 0.773 0.954 199.0 255.8 74.1 1812 1954 2024
13P/Olbers 69.60 1.178 0.930 64.6 86.1 44.6 1815 1956 2024
14P/Wolf 8.21 2.413 0.407 162.3 204.1 27.5 1884 2000
15P/Finlay 6.95 1.094 0.699 322.2 42.3 3.6 1886 1995 2002
16P/Brooks 2 6.89 1.843 0.490 197.9 176.9 5.5 1889 1994 2001
17P/Holmes 7.07 2.165 0.412 23.2 328.0 19.1 1892 2000
18D/Perrine-Mrkos 6.72
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 1896 1968 -
19P/Borrelly 6.88 1.365 0.622 353.3 75.4 30.2 1904 1994 2001
20D/Westphal 61.90
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 1852 1913 -
21P/Giacobini-Zinner 6.61 1.034 0.706 172.6 195.4 31.9 1900 1998 2005
22P/Kopff 6.45 1.579 0.544 162.8 120.9 4.7 1906 1996 2002
23P/Brorsen-Metcalf 70.50 0.478 0.971 129.6 311.5 19.3 1847 1989 2059
24P/Schaumasse 8.22 1.202 0.704 57.4 81.0 11.8 1911 1993 2001
25D/Neujmin 2 5.43
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 1916 1927 -
26P/Grigg-Skjellerup 5.11 0.997 0.664 359.3 213.3 21.1 1808 1997 2002
27P/Crommelin 27.40 0.734 0.919 195.8 250.9 29.1 1818 1984 2011
28P/Neujmin 1 18.20 1.548 0.776 347.0 347.1 14.2 1913 1984 2002
29P/Schwassmann-Wachmann 1 14.70 5.722 0.046 48.6 312.8 9.4 1902 1989 2004
30P/Reinmuth 1 7.31 1.873 0.502 13.2 119.7 8.1 1928 1995 2002
31P/Schwassmann-Wachmann 2 8.73 3.368 0.206 19.1 115.5 4.5 1929 1994 2002
32P/Comas Sola 8.78 1.830 0.569 45.5 61.0 12.9 1926 1996 2005
33P/Daniel 8.07 2.157 0.464 19.0 66.6 22.4 1909 1992 2000
34D/Gale 11.00
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 1927 1938 -
35P/Herschel-Rigollet 155.00 0.748 0.974 29.2 355.9 64.2 1788 1939 2094
36P/Whipple 8.52 3.088 0.260 202.0 182.5 9.9 1925 1994 2003
37P/Forbes 6.14 1.446 0.569 310.8 334.3 7.2 1929 1999 2005
38P/Stephan-Oterma 37.70 1.574 0.859 358.1 79.1 17.9 1867 1980 2018
39P/Oterma 7.88 5.494 0.245 55.4 331.6 1.9 1942 1958 -
40P/Vaisala 1 10.80 1.783 0.634 47.3 135.0 11.5 1939 1993 2004
41P/Tuttle-Giacobini-Kresak 5.46 1.068 0.655 61.6 141.5 9.2 1858 1995 2001
42P/Neujmin 3 10.60 2.001 0.586 147.0 150.4 3.9 1929 1993 2004
43P/Wolf-Harrington 6.46 1.581 0.544 187.1 254.8 18.5 1924 1997 2004
44P/Reinmuth 2 6.64 1.890 0.465 46.1 296.1 7.0 1947 1994 2001
45P/Honda-Mrkos-Pajdusakova 5.30 0.541 0.821 325.7 89.3 4.2 1948 1995 2001
46P/Wirtanen 5.46 1.064 0.657 356.3 82.2 11.6 1947 1997 2002
47P/Ashbrook-Jackson 7.46 2.306 0.396 348.8 2.6 12.5 1948 1993 2001
48P/Johnson 6.97 2.308 0.367 208.1 117.1 13.6 1949 1997 2004
49P/Arend-Rigaux 6.62 1.368 0.612 330.6 121.7 18.3 1950 1998 2005
50P/Arend 8.24 1.917 0.530 49.0 355.4 19.2 1951 1999 2007
51P/Harrington 6.78 1.571 0.561 233.4 119.2 8.6 1953 1994 2001
52P/Harrington-Abell 7.53 1.756 0.543 138.9 337.3 10.1 1954 1999 2006
53P/Van Biesbroeck 12.40 2.400 0.552 134.1 149.1 6.6 1954 1991 2003
54P/de Vico-Swift 6.31 2.145 0.431 2.0 359.0 6.1 1844 1965 -
55P/Tempel-Tuttle 33.20 0.977 0.904 172.5 235.3 162.5 1366 1998 2031
56P/Slaughter-Burnham 11.60 2.543 0.503 44.1 346.4 8.1 1958 1993 2005
57P/du Toit-Neujmin-Delporte 6.39 1.715 0.501 115.2 189.0 2.8 1941 1996 2002
58P/Jackson-Neujmin 8.42 1.437 0.652 196.5 163.8 14.0 1936 1995 2004
59P/Kearns-Kwee 9.44 2.339 0.476 127.5 313.0 9.4 1963 1999 2009
60P/Tsuchinshan 2 6.79 1.770 0.506 203.1 288.3 6.7 1965 1999 2005
61P/Shajn-Schaldach 7.46 2.331 0.390 216.5 166.9 6.1 1949 1993 2001
62P/Tsuchinshan 1 6.65 1.496 0.576 22.8 96.8 10.5 1965 1998 2004
63P/Wild 1 13.20 1.961 0.650 168.0 358.5 19.9 1960 1999 2013
64P/Swift-Gehrels 9.18 1.339 0.695 92.4 306.1 8.4 1889 1991 2000
65P/Gunn 6.81 2.454 0.317 196.3 68.4 10.4 1953 1996 2003
66P/du Toit 15.00 1.265 0.789 257.2 22.3 18.7 1944 1974 2003
67P/Churyumov-Gerasimenko 6.59 1.299 0.630 11.4 51.0 7.1 1969 1996 2002
68P/Klemola 10.90 1.772 0.640 154.5 176.4 10.9 1965 1987 -
69P/Taylor 6.97 1.948 0.466 355.4 108.9 20.5 1915 1997 2004
70P/Kojima 7.04 2.003 0.454 2.0 119.3 6.6 1970 2000 -
71P/Clark 5.51 1.559 0.501 208.9 59.7 9.5 1973 1995 2000
72P/Denning-Fujikawa 9.01 0.790 0.818 337.6 36.4 9.1 1881 1996 2005
73P/Schwassmann-Wachmann 3 5.35 0.937 0.694 198.8 69.9 11.4 1930 1995 2001
74P/Smirnova-Chernykh 8.49 3.546 0.148 86.6 77.2 6.7 1967 1992 2001
75P/Kohoutek 6.65 1.775 0.497 175.6 269.7 5.9 1975 1994 2001
76P/West-Kohoutek-Ikemura 6.46 1.596 0.540 0.1 84.1 30.5 1975 2000 -
77P/Longmore 6.87 2.328 0.356 195.5 15.3 24.5 1975 1995 2002
78P/Gehrels 2 7.94 2.348 0.409 183.5 216.2 6.6 1973 1989 2005
79P/du Toit-Hartley 5.21 1.199 0.601 251.5 309.3 2.9 1945 1987 2003
80P/Peters-Hartley 8.13 1.625 0.597 338.3 260.1 29.8 1846 1990 2006
81P/Wild 2 6.39 1.583 0.540 41.8 136.1 3.2 1978 1997 2003
82P/Gehrels 3 8.44 3.601 0.132 231.4 239.9 1.1 1975 1993 2001
83P/Russell 1 6.10 1.611 0.517 0.3 230.8 22.6 1979 1985 2003
84P/Giclas 6.95 1.846 0.493 276.4 112.5 7.3 1978 1999 2006
85P/Boethin 11.20 1.114 0.777 11.6 26.4 5.7 1975 1986 2008
86P/Wild 3 6.91 2.299 0.366 179.2 72.6 15.4 1980 1994 2001
87P/Bus 6.51 2.181 0.375 24.2 182.2 2.6 1981 2000 -
88P/Howell 5.57 1.402 0.554 234.8 57.7 4.4 1981 1998 2004
89P/Russell 2 7.38 2.276 0.399 249.1 42.5 12.0 1980 1994 2002
90P/Gehrels 1 15.10 2.988 0.510 28.4 13.5 9.6 1972 1987 2002
91P/Russell 3 7.50 2.510 0.343 353.4 248.7 14.0 1983 1997 2005
92P/Sanguin 12.50 1.813 0.663 162.8 182.5 18.7 1977 1990 2002
93P/Lovas 1 9.09 1.679 0.614 73.6 342.4 12.2 1980 1989 -
94P/Russell 4 6.57 2.222 0.366 93.0 71.0 6.1 1984 1997 2003
95P/Chiron 50.70 8.453 0.383 339.5 209.3 6.9 1977 1996 2046
96P/Machholz 1 5.24 0.125 0.958 14.5 94.5 60.1 1986 1996 2001
97P/Metcalf-Brewington 7.76 1.591 0.593 208.0 187.7 13.0 1906 1991 2006
98P/Takamizawa 7.22 1.589 0.574 147.6 124.9 9.4 1984 1991 2006
99P/Kowal 1 15.00 4.672 0.232 174.6 28.7 4.3 1977 1992 2007
100P/Hartley 1 6.02 1.818 0.450 178.7 38.9 25.7 1985 1991 -
101P/Chernykh 14.00 2.356 0.593 263.2 130.3 5.0 1977 1992 2005
102P/Shoemaker 1 7.24 1.979 0.471 18.6 340.0 26.3 1984 1999 2006
103P/Hartley 2 6.39 1.032 0.700 180.7 220.0 13.6 1986 1997 2004
104P/Kowal 2 6.39 1.499 0.564 189.5 247.7 15.8 1979 1991 -
105P/Singer Brewster 6.43 2.032 0.413 46.8 192.6 9.1 1986 1999 2005
106P/Schuster 7.29 1.550 0.588 355.9 50.6 20.1 1977 1999 2007
107P/Wilson-Harrington 4.29 0.996 0.622 90.8 271.0 2.7 1949 1992 -
108P/Ciffreo 7.25 1.713 0.543 358.1 53.7 13.1 1985 1993 2000
109P/Swift-Tuttle 135.00 0.958 0.963 153.0 139.4 113.4 -68 1992 2126
110P/Hartley 3 6.87 2.476 0.315 168.1 287.8 11.7 1988 1993 2001
111P/Helin-Roman-Crockett 8.16 3.489 0.138 10.1 91.9 4.2 1989 1996 2004
112P/Urata-Niijima 6.64 1.458 0.587 21.4 31.9 24.2 1986 1993 2000
113P/Spitaler 7.10 2.133 0.422 50.2 14.5 5.7 1890 1994 2001
114P/Wiseman-Skiff 6.66 1.569 0.556 172.8 271.1 18.3 1986 1993 2000
115P/Maury 8.74 2.026 0.522 119.8 176.8 11.6 1985 1994 2002
116P/Wild 4 6.42 2.122 0.385 173.6 21.8 3.7 1990 1996 2002
117P/Helin-Roman-Alu 1 9.33 3.604 0.187 209.9 70.9 9.9 1989 1997 2006
118P/Shoemaker-Levy 4 6.51 2.019 0.420 302.3 152.0 8.4 1991 1997 2003
119P/Parker-Hartley 8.90 3.042 0.292 181.2 244.2 5.2 1989 1996 2005
120P/Mueller 1 8.45 2.746 0.337 30.3 4.6 8.8 1987 1996 2004
121P/Shoemaker-Holt 2 8.01 2.645 0.339 5.9 99.7 17.7 1989 1996 2004
122P/de Vico 74.40 0.659 0.963 13.0 79.6 85.4 1846 1995 2070
123P/West-Hartley 7.57 2.129 0.447 102.6 46.8 15.3 1989 1996 2003
124P/Mrkos 5.64 1.410 0.554 180.4 1.6 31.4 1991 1996 2002
125P/Spacewatch 5.57 1.540 0.508 87.3 153.4 9.9 1991 1996 2002
126P/IRAS 13.20 1.703 0.697 356.8 357.8 46.0 1983 1996 2010
127P/Holt-Olmstead 6.33 2.153 0.370 6.3 14.1 14.4 1990 1997 2003
128P/Shoemaker-Holt 1 9.54 3.049 0.322 210.4 214.5 4.4 1987 1997 2007
129P/Shoemaker-Levy 3 7.25 2.815 0.248 181.3 303.7 5.0 1991 1998 2005
130P/McNaught-Hughes 6.69 2.114 0.404 224.2 89.9 7.3 1991 1998 2004
131P/Mueller 2 6.56 2.412 0.343 179.6 214.3 7.1 1990 1997 2004
132P/Helin-Roman-Alu 2 8.20 1.929 0.525 200.3 203.0 7.4 1989 1997 2006
133P/Elst-Pizarro 5.60 2.628 0.167 133.3 160.3 1.4 1979 1996 2001
134P/Kowal-Vavrova 15.90 2.608 0.588 19.4 202.5 4.3 1983 1997 2015
135P/Shoemaker-Levy 8 7.49 2.721 0.289 22.6 213.3 6.1 1992 1999 2007
136P/Mueller 3 8.68 3.008 0.288 225.1 137.8 9.4 1990 1999 2007
137P/Shoemaker-Levy 2 9.38 1.869 0.580 142.0 234.8 4.7 1990 1990 2000
138P/Shoemaker-Levy 7 6.73 1.630 0.542 91.9 312.9 10.2 1991 1998 2005
139P/Vaisala-Oterma 9.55 3.383 0.248 165.7 242.5 2.3 1939 1998 2008
140P/Bowell-Skiff 16.20 1.972 0.692 173.1 343.5 3.8 1983 1999 2015
141P/Machholz 2 5.22 0.749 0.751 149.3 246.1 12.8 1994 1999 2004
142P/Ge-Wang 11.10 2.492 0.500 177.2 177.0 12.2 1988 1999 2010
143P/Kowal-Mrkos 8.95 2.547 0.409 320.6 245.5 4.7 1984 2000
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144P/Kushida 7.57 1.431 0.629 216.0 245.6 4.1 1994 2000
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145P/Shoemaker-Levy 5 8.69 1.989 0.529 6.2 29.7 11.8 1991 2000
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146P/Shoemaker-LINEAR 7.88 1.319 0.667 317.8 55.4 21.6 1984 2000
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P/1992G3(Mueller4) 9.0

2.65

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P/1993X1(Kushida-Muramatsu)

7.4

2.75

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P/1994A1(Kushida)

7.6

1.43

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P/1987Q3(Helin)

14.1

2.53

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