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. 2017 May 29;375(2097):20160249. doi: 10.1098/rsta.2016.0249

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© 2017 The Author(s)

Published by the Royal Society. All rights reserved.

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Figure 3. — R-band images of the comet, 1 arcminute on each side. Arrows indicate the direction of the orbital velocity (v) and the Sun (⊙) directions, i.e. opposite the expected direction of the dust trail and ion tail, respectively. Image dates, telescopes and exposure times: 2014/02/27, VLT/FORS, 10×50 s; 2014/07/01, VLT/FORS, 31×50s; 2014/10/22, VLT/FORS, 39×50s; 2015/05/21, VLT/FORS, 2×30s; 2015/07/18, LT/IO:O, 10×20s; 2015/10/07, LT/IO:O, 9×15s; 2016/01/10, LT/IO:O, 3×120s; 2016/03/10, LT/IO:O, 14×180s; 2016/06/03, LT/IO:O, 3×180s. May 2015 image shows reflection from a bright star out of the field of view (above comet).