Terby Crater
Date: 26 May 2009
Satellite: Mars Express
Copyright: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO
This false-colour image shows the northern part of the large Terby crater on Mars, with the surface colour-coded according to height. The image data is derived from three HRSC colour channels and the nadir channel of the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express orbiter. The Terby crater region is of great scientific interest as sediments there reveal information on the role of water in the history of the planet.
The image data was obtained on 13 April 2007 during orbit 4199, with a ground resolution of approximately 13 m/pixel. North on Mars is to the right in this view. The Sun illuminates the scene from the west (from above in the image). The northern rim of the crater is visible on the right in this image, as the transition from the lower surface levels inside the crater (yellow/orange) to the higher surface levels outside the crater (red/grey).
The Terby crater lies at approximately 27° south and 74° east. It is located at the northern edge of the Hellas Planitia impact basin in the southern hemisphere of Mars.
The crater, named after the Belgian astronomer Francois J. Terby (1846 – 1911), has a diameter of approximately 170 km. The scene shows a section of a second impact crater in the northern part of the Terby crater.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 IGO License. 
