DescriptionComet 67P on 24 September 2014 NavCam mosaic.jpg
English: Mosaic of four images taken by Rosetta's navigation camera (NAVCAM) on 24 September 2014 at 28.5 km from the centre of comet 67P/Churyumov-Gerasimenko.
The images used for this mosaic were taken in sequence as a 2×2 raster over a period of about 20 minutes, meaning that there is some motion of the spacecraft and rotation of the comet between the images. The mosaicking programme that was used (Microsoft ICE) seems to have done a nice job of stitching the images together, but if you refer to the four separate images you will see some differences in illumination and shadows.
The four individual full-frame images are available as related images in the right-hand menu.
Note this mosaic has been rotated by 180 degrees and cropped to remove most of the black space around the comet. The images were background subtracted to remove some striping and fixed noise patterns.
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.
de partager – de copier, distribuer et transmettre cette œuvre
d’adapter – de modifier cette œuvre
Sous les conditions suivantes :
paternité – Vous devez donner les informations appropriées concernant l'auteur, fournir un lien vers la licence et indiquer si des modifications ont été faites. Vous pouvez faire cela par tout moyen raisonnable, mais en aucune façon suggérant que l’auteur vous soutient ou approuve l’utilisation que vous en faites.
partage à l’identique – Si vous modifiez, transformez, ou vous basez sur cette œuvre, vous devez distribuer votre contribution sous la même licence ou une licence compatible avec celle de l’original.