Fig. 1
Dust coma of 67P in the pre-perihelion epoch. The left panel shows an image of the dust coma acquired on 22 Oct. 2008, at heliocentric distance of 1.90 AU. Orientation: north is up and east is left. Field of view: 195 × 195 arcsec = 273 000 km at the comet. The right panel is the same image processed with a Larson-Sekanina filter. The dotted line traces the orbital plane of the comet.
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