DescriptionComet 67P on 2 November 2014 NavCam mosaic.jpg
English: Mosaic of four images taken by Rosetta's navigation camera (NAVCAM) on 2 November 2014 at 33.4 km from the centre of comet 67P/Churyumov-Gerasimenko – about 31.4 km from the surface. The image resolution is 2.68 m/pixel and thus each original 1024 x 1024 pixel frame measured 2.7 km across.
The images used for this mosaic were taken in sequence as a 2×2 raster over a short period af about twenty minutes, meaning that there is some motion of the spacecraft and rotation of the comet between the images.
The images have been cleaned to remove the more obvious bad 'pixel pairs' and cosmic ray artefacts. The mosaic has been slightly rotated and cropped and covers 4.1 x 4.1 km: some contrast enhancement has been applied.
The four individual images making up the mosaic are available via the blog : CometWatch – 2 November
This photography is a RosettaNAVCAM image created by the European Space Agency (ESA). Their website states : "All Rosetta NAVCAM images are released under the Creative Commons Attribution-ShareAlike 3.0 IGO License. The user is allowed to reproduce, distribute, adapt, translate and publicly perform this publication, without explicit permission, provided that the content is accompanied by an acknowledgement that the source is credited as "ESA/Rosetta/NAVCAM, CC BY-SA IGO 3.0" as the source. A direct link to the license text is provided and that it is clearly indicated if changes were made to the original content. If any changes are made to the images, remix, translate or adaptation must be published under the same license terms (CC BY-SA 3.0 IGO) or a compatible license. You must also not give any suggestion that ESA necessarily endorses the modifications that you have made." To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
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