Broken fragments of Comet SW-3

Image of the broken fragments surrounding Fragment B of Comet 73P/Schwassmann-Wachmann 3 observed with FORS1 on ESO's VLT in three filters (B - blue, V - green, and R - red). As the telescope was tracking the comet, the stars appear as coloured trails, indicating the order in which the comet was observed in the different filters. As less filters have been used for this image, that zooms-in on the fragments, the colours appear different than on the ESO Press Photo eso0615.