Curiosity sol 783 sunset panorama containing Siding Spring
Curiosity took the photos for this panorama just after sunset on sol 783, at 6:11 local time. The twilight sky is still bright thanks to lots of dust in the atmosphere. Near the extreme upper left corner of this panorama is a single bright pixel representing comet Siding Spring, which had just passed close by Mars a couple of hours earlier. (The comet is difficult to spot unless you enlarge the photo to its full resolution.) This photo was taken at about 21:10 UT on October 19; closest approach occurred at 18:27.