Fig. 1
Representative images of the observations obtained using a CCD camera at 1.52 m telescope at the Observatorio de Sierra Nevada in Granada, Spain. Right panel corresponds to 81P/Wild 2 on April 9, 2010. Isophote levels in solar disk units (SDU) are: 0.25 × 10-13, 0.77 × 10-13, 2.20 × 10-13. Left panel corresponds with comet 103P/Hartley 2 on August 4, 2010. Isophote levels are: 0.20 × 10-13, 0.40 × 10-13, 1.10 × 10-13. In both cases the directions of celestial north and east are given. The vertical bars correspond to 2 × 104 km in the sky.
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