NASA / JPL-Caltech / SSI / colorized by Emily Lakdawalla
Cassini's March 3, 2010 Helene flyby
On March 3, 2010, Cassini flew within about 2,000 kilometers of Dione's co-orbital moon Helene, snapping a series of images with its narrow-angle camera. Most of those photos missed Helene entirely; toward the end of the encounter, some caught Helene in the corner of the image. In the background are the cloud tops of Saturn. This image was artificially colorized; the data is from a single green-filter image of Helene and Saturn.