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CometWatch – late August round-up

26 Aug 2016, 14:59 UTC
CometWatch – late August round-up ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
(200 words excerpt, click title or image to see full post)

This week's CometWatch entry was taken with Rosetta's NAVCAM on 17 August 2016, when the spacecraft was 13.9 km from the nucleus of Comet 67P/Churyumov-Gerasimenko.
Enhanced NAVCAM image of Comet 67P/C-G taken on 17 August 2016, 13.9 km from the nucleus. The scale is 1.2 m/pixel and the image measures 1.2 km across. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
This close-up view shows a portion of the Imhotep region, on the large comet lobe.
The top part of the image portrays the flat, smooth-covered portion of Imhotep, scattered with a variety of boulders of different sizes. Towards the top right is a cluster of three large boulders, including the 45-m sized Cheops, named after the Great Pyramid at Giza near Cairo in Egypt.
Around the comet's perihelion, Rosetta observed many spectacular changes on this portion of Imhotep (see blog post 'Comet surface changes before Rosetta’s eyes').
To have an idea of the surface changes, you can compare the new CometWatch with a number of images of the same region taken in the past months by Rosetta: from early images such as CometWatch 26 October 2014 and the close fly-by of 14 February 2015 to more recent ones, for example ...

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