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#Redirect ] | |||
Non-periodic ]s are seen on only one occasion. They are usually on near-]s that will not return to the vicinity of the ] for thousands of years, if ever. | |||
{{R with history}} | |||
The official names of non-periodic comets (defined as comets with orbital periods of 200 years or more) begin with a "C"; comets that have been lost or disappeared have names that begin with a "D". An example of the latter is ] (D/1770 L1), which is known to have been ejected from the ] by ]. | |||
The following is a partial list of non-periodic comets that have appeared in the ]: | |||
==After 1910 (alphabetical)== | |||
{| border="1" cellspacing="0" cellpadding="2" | |||
!align="left"|Comet !!align="left"|Discoverer(s) or Namesake, Date of discovery | |||
|- | |||
| ] (C/1956 R1, 1957 III, 1956h) || ] and ], ], ] | |||
|- | |||
| ] (C/1911 S3, 1911 IV, 1911g) || ], ], ] | |||
|- | |||
| ] (C/1969 Y1, 1970 II, 1969i) || ], ], ] | |||
|- | |||
| ] (C/1911 O1, 1911 V, 1911c) || ], ], ] | |||
|- | |||
| ] (C/1941 B2, 1941 IV, 1941c) || ], ], ] and ], ], ] | |||
|- | |||
| ] (C/1948 V1, 1948 XI, 1948l) || First spotted during the ] total ] of ], ] (magnitude about −2) | |||
|- | |||
| ] (C/1995 O1) || ] and ], ], ] one of only four comets known to have had a negative ] (−2.7) | |||
|- | |||
| ] (C/1961 R1, 1962 VIII, 1961e) || ], ], ] | |||
|- | |||
| ] (C/1996 B2) || ], ], ] | |||
|- | |||
| ] (C/1965 S1, 1965 VIII, 1965f) || ], ], ], ] | |||
|- | |||
| ] (C/1973 E1, 1973 XII, 1973f) || ], ], ] | |||
|- | |||
| ] (C/2004 Q2) || ], ], ] | |||
|- | |||
| ] (C/1957 P1, 1957 V, 1957d) || ], ], ] | |||
|- | |||
| ] (C/2006 A1) || ], ], ] | |||
|- | |||
| ] (C/1962 C1, 1962 III, 1962c, Reitberg-Blakesen, Khokhlov) || ] and ], ], ] | |||
|- | |||
| ] (D/1993 F2, 1994 X, 1993e) || ], ], ], ], ] | |||
|- | |||
| ] (C/1927 X1, 1927 IX, 1927k) || ], ], ], and ]<!-- of La Plata, Argentina; http://cdsads.u-strasbg.fr//full/seri/AN.../0231//0000216.000.html -->, ], ] | |||
|- | |||
| ] (C/1989 Y1, 1990 VI, 1989e<sub>1</sub>) || ] and ], ], ]<!--- http://www.saguaroastro.org/content/SACNEWS/sac1990/sac.9002.pdf ---> | |||
|- | |||
| ] (C/1947 X1, 1947 XII, 1947n) || ], ] | |||
|- | |||
| ] (C/2006 M4) || ] and ], ], ] | |||
|- | |||
| ] (C/1975 V1, 1976 VI, 1975n) || ], ], ] | |||
|- | |||
| ] (C/1970 K1, 1970 VI, 1970f) || ], ], ], ], ], ], and ], ], ] | |||
|- | |||
| ] (C/1961 O1, 1961 V, 1961d, Drakesen, Portlock-Weinberg) || ] and ], ], ] | |||
|- | |||
| ] (C/1997 L1) || ] (], ]) and ] (], ] ) | |||
|} | |||
==1910 and earlier (chronological)== | |||
{| border="1" cellspacing="0" cellpadding="2" | |||
!align="left"|Comet !!align="left"|Discoverer(s) or Namesake, Discovery date | |||
|- | |||
| ] (1577 I) || ], ] absolute magnitude −1.8, one of only four comets known to have had a negative absolute magnitude | |||
|- | |||
| ] || ], ], ] (], ]) | |||
|- | |||
| ] (C/1680 V1) || ], ], ] (first telescopic discovery of a comet) | |||
|- | |||
| ] || ], ], ] (], ]) | |||
|- | |||
| ] || ], ], ] (], ]) | |||
|- | |||
| ] (C/1729 P1, 1729, Comet Sarabat) || ], ], ] absolute magnitude −3.0, one of only four comets known to have had a negative absolute magnitude | |||
|- | |||
| ] (1744, Comet Klinkenberg-de Chéseaux) || ], ], ], and ], ], ] (orbit computer) became brighter than Jupiter and in March 1744 exhibited no less than six tails | |||
|- | |||
| ] (1747, Comet de Chéseaux) || ], ], ] absolute magnitude −0.5, one of only four comets known to have had a negative absolute magnitude | |||
|- | |||
| ] (C/1760 A1, 1759 III, Parisian Comet) || ], ], approached ] to within 0.054 ] in ] | |||
|- | |||
| ] (D/1770 L1) || ], ], by ], but named for ], who first calculated its orbit | |||
|- | |||
| ] (C/1771 A1, 1770 II) || ], ] | |||
|- | |||
| ] (C/1783 X1, 1784) || ], ], ]<!--- This was his third and last comet discovery, the first being on May 26, 1758; see http://files.chatnfiles.com/Space%20and%20Astronomy/TEXT/SPACEDIG/V16_6/V16NO694.TXT May be the same person as Pierre Évariste de Lanux Véronge (1738-1805); see http://www.delanux.com/INDEX_G.HTML ---> | |||
|- | |||
| ] (C/1807 R1, 1807) || ], ], ] | |||
|- | |||
| ] (C/1811 F1) || ], ], ] | |||
|- | |||
| ] (1819 II, Comet Tralles) || ], ], ] | |||
|- | |||
| ] (C/1823 Y1, 1823) || ], ] | |||
|- | |||
| ] (C/1825 N1, 1825 IV) || ], ], ] | |||
|- | |||
| ] (C/1830 F1, 1830 I) || ], ], ] (]) and ], ], ] (], ]) | |||
|- | |||
| ] (C/1831 A1, 1830 II) || ], ], ] () | |||
|- | |||
| ] (C/1843 D1, 1843 I) || ], ] | |||
|- | |||
| ] (C/1844 Y1, 1844 III) || ], ] | |||
|- | |||
| ] (C/1845 L1, 1845 III) || ], ] | |||
|- | |||
| ] (C/1847 C1, 1847 I) || ], ], ] | |||
|- | |||
| ] (C/1847 T1, 1847 VI) || ], ], ] | |||
|- | |||
| ] (C/1853 L1, 1853 III) || ], ], ] | |||
|- | |||
| ] (C/1854 F1, 1854 II) || ], ] | |||
|- | |||
| ] (C/1858 L1, 1858 VI) || ], ], ] | |||
|- | |||
| ] (C/1860 M1, 1860 III) || ], ] | |||
|- | |||
| ] (C/1861 G1) || ] of ], ], ] | |||
|- | |||
| ] (C/1861 J1, 1861 II) || ], ], ] | |||
|- | |||
| ] (C/1865 B1, 1865 I) || ], ] | |||
|- | |||
| ] (C/1874 H1, 1874 III) || ], ], ] | |||
|- | |||
| ] (C/1880 C1, 1880 I) || ], ] | |||
|- | |||
| ] (C/1881 K1, 1881 III, 1881b) || ], ], ] | |||
|- | |||
| ] (C/1882 F1, 1882 I, 1882a) || ], ], ] | |||
|- | |||
| ] (C/1882 R1, 1882 II, 1882b) || ], ], reached an estimated magnitude −17 (C/1882 R1, ] (du Toit) and ] may be the fragments of ]) | |||
|- | |||
| ] (C/1887 B1, 1887 I, 1887a) || ], ], ], "The Headless Wonder" | |||
|- | |||
| ] (C/1901 G1, 1901 I, 1901a) || ], ]<!--- Allegedly "Viscara" on April 12, 1901. Viscara was apparently an administrator of some sort in Paysandú, Uruguay, and a Lorenzo Kropp on May 25 wrote a letter to the Astronomische Nachrichten concerning this alleged observation. ---> | |||
|- | |||
| ] (C/1910 A1)<br/>(not to be confused with the ] apparition of ]) || Observed by many on the morning of ], ], the first astronomer to see it was ] | |||
|} | |||
==See also== | |||
* ] | |||
==External links== | |||
* from ] website | |||
* | |||
* | |||
* | |||
] | |||
] | |||
] | |||
] |
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