Rosetta Mission NavCam image taken on 18 September when the spacecraft was about 10 km from Comet 67P/Churyumov-Gerasimenko. The scale at the surface is about 1.0 m/pixel and the image measures about 1.1 km across. See http://www.esa.int/spaceinimages/Images/2016/09/Comet_on_18_September_2016_NavCam