Titanian Afterlight (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)

Caption NASA:"The Cassini Spacecraft looks toward the dark side of Saturn's largest moon as a circle of light is produced by sunlight scattering through the periphery of Titan's Atmosphere.
A detached, high-altitude global Haze Layer encircles the Planet.
North on Titan is up and rotated 2° to the left.

The image was taken in Visible Blue Light with the Cassini Spacecraft narrow-angle camera on Oct. 9, 2009. The view was acquired at a distance of approx. 1,4 MKM (about 870.000 miles) from Titan and at a Sun-Titan-Spacecraft, or Phase, Angle of 157°.
Image scale is roughly 9 Km (about 5,5 miles) per pixel".