This is a stack of seven images on the comet movement.
Due to the particular geometry of the Sun-Comet-Earth we see the straight gas tail to the South East (bottom left) in contrast with the many jets in the opposite direction North West (Top right).
(c) 2007 Feb 21 La Cañada J.Lacruz
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Fascinating centaur object 29/P comet after one of the frequent outburst it undergoes at an Helio centric distance of about 5 Astronomical units.
To the right a Larson Sekanina filtering (just a radial shift of 0.5 pixels) to better show the shell structures.
(c) 2007 Feb 21 La Cañada J.lacruz
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