Posted on 14/01/2015 by emily
CometWatch – 8 January
This four-image mosaic comprises images taken from a distance of 27.5 km from the centre of Comet 67P/Churyumov-Gerasimenko on 8 January. The image resolution at this distance is about 2.3 m/pixel and the individual 1024 x 1024 frames measure about 2.4 km across. The mosaic measures 4.3 x 3.9 km.
In this view the smaller of the comet’s two lobes is to the right, presenting a side-on look into the large, roughly 1 km-wide depression towards the edge of the mosaic. The rugged outline of the smaller lobe can be traced into the shadows, creating a nice contrast against the smooth neck region in the centre of the image. As noted in the 9 December CometWatch this portion of the neck has some particularly interesting features, such as the bright, exposed cliffs, the curved trough-like features and dark markings in the dusty layer.
To the left, the image offers a striking view of the large comet lobe, in particular the steep, layered cliff face that towers above a smoother, dust-covered ledge. At its edge, it appears as though some of the dust may have slipped away. Towards the background, ridges seem to cut through the terrain, while several flat-topped plateaus are set along the horizon.
The four individual 1024 x 1024 frames, along with a montage of the four frames, are provided below: