This four-image mosaic comprises images taken from a distance of 20.4 km from the centre of Comet 67P/Churyumov-Gerasimenko on 9 December. The image resolution is 1.74m/pixel and the individual 1024 x 1024 frames measure 1.8 km across. The mosaic is slightly cropped and measures 2.9 x 2.7 km. As usual, rotation and … Continue reading CometWatch 9 December