7P/Pons-Winnecke 5462368 221176403 2008-06-23T11:02:14Z Vyznev Xnebara 1119743 Fixing temporary "arxiv.org/PS_cache" URLs to point to abstract page with download links instead (with [[User:Ilmari Karonen/fixarxivlinks.js|script assistance]]) {{Infobox Comet | name=7P/Pons-Winnecke | image= | discoverer=[[Jean Louis Pons]] &<br/>[[Friedrich August Theodor Winnecke|Friedrich Winnecke]] | discovery_date=[[June 12]], [[1819]] &<br/>[[March 9]], [[1858]] | designations=1858 E1, 1858 II, 1819 III,<br/>1927c, 1933b, 1939c,<br/>1945a, 1951c, 1964b,<br/>1970b, 1976f, 1983b,<br/>1989g | epoch=[[May 6]], [[2002]] | semimajor=3.434 [[Astronomical Unit|AU]] | perihelion=1.257 AU | aphelion=5.611 AU | eccentricity=0.634 | period=6.37 [[Julian year (astronomy)|a]] | inclination= 22.28° | last_p=[[May 15]], [[2002]] | next_p=[[September 26]], [[2008]] }} '''7P/Pons-Winnecke''' is a periodic [[comet]] in our [[solar system]]. [[Jean Louis Pons]] ([[Marseille]]) originally discovered the comet on [[June 12]], [[1819]], it was later rediscovered by [[Friedrich August Theodor Winnecke]] ([[Bonn]]) on [[March 9]], [[1858]]. It is believed to be the parent body of the [[June Bootids]] of late June. The nucleus has been estimated to be 2.6&nbsp;km long. 7P has an orbital period of 6.37 years. It has a [[apsis|perihelion]] of 1.3&nbsp;AU and an [[apsis| aphelion]] of 5.6&nbsp;AU (past the orbit of Jupiter). It passed within 6&nbsp;Gm (0.04&nbsp;AU) of Earth in June 1927, and 16&nbsp;Gm (0.1&nbsp;AU) in 1939; but it will not come as close in the 21st century. ==External links== *[http://cometography.com/pcomets/007p.html 7P at Kronk's Cometography] *[http://arxiv.org/abs/astro-ph/0509115v1 article on the nuclei of 7P, 14P, and 92P] {{PeriodicComets Navigator|6P/d'Arrest|8P/Tuttle}} [[Category:Comets|Pons-Winnecke]] {{comet-stub}} [[de:Pons-Winnecke]] [[it:7P/Pons-Winnecke]] [[ja:ポンス・ヴィネッケ彗星]] [[pl:7P/Pons-Winnecke]] [[sk:7P/Pons-Winnecke]] [[zh:7P/龐士-溫尼克彗星]]