File:Lovejoy C-2011 W3 imaged by STEREO-A EUVI.gif

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English: Comet Lovejoy in STEREO/SECCHI's EUVI-A imager's 171-Angstrom wavelength.
Clearly we see the tail wiggling again but this time it looks like the entire comet is dancing about in and out of the corona! Of course it's not – that's an optical illusion facilitated by the way the tail is moving around. If you were to plot the comet head positions you would see they follow a perfect smooth curve. That tail does not though! What seems to be happening – and this is my very preliminary reaction that could be as accurate as my Lovejoy-will-never-survive prediction – is that the charge-free dust in the comet tail is being rapidly charged as it leave the comet and is basically "clinging" to, or certainly interacting with, magnetic field lines in the corona… somehow. Throw in some Fairy-dust and there's your explanation!
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Source http://sungrazer.nrl.navy.mil/index.php?p=news/birthday_comet (direct link)
Author STEREO/SECCHI image courtesy NASA/NRL

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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19 December 2011

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Date/TimeThumbnailDimensionsUserComment
current05:00, 5 January 2012Thumbnail for version as of 05:00, 5 January 2012750 × 780 (4.14 MB)Ras67one redundant frame removed to bypass the 12.5 MP limitation
05:18, 30 December 2011Thumbnail for version as of 05:18, 30 December 2011750 × 780 (4.33 MB)Ras67{{Information |Description ={{en|1=Comet Lovejoy in STEREO/SECCHI's EUVI-A imager's 171-Angstrom wavelength.<br />Clearly we see the tail wiggling again but this time it looks like the entire comet is dancing about in and out of the corona! Of course i