Sagan Crater - False Color

This false color image shows part of the inner rim (bottom of image), central peak ring (top of image) and floor of Sagan Crater. This 90 km (56 miles) crater was named for Carl Sagan. Peak rings are created during impact by uplift of the center and slumping of the walls of large craters (~100 km). The small blue dots are sand dunes. Basaltic sands are typically blue in this false color combination.

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image.