Arcus on Titan

The IAU's Working Group for Planetary System Nomenclature (WGPSN) has approved the feature type, Arcus. This term will be used for arc-shaped albedo (possibly topographic as well) features. This feature type would applicable to such features as the "smile", found to be very bright at 5 microns by VIMS.

No word yet on additional names for Titan and this "arcus".