The Trojan Moons: Telesto, from 533.000 Km

Caption NASA originale:"This is Cassini's best look yet at the Trojan moon Telesto (24 Km, or 15 miles across), which orbits Saturn about 60° ahead of the much larger Tethys (1.071 Km, or 665 miles across). Calypso (22 Km, or 14 miles across) is the other Tethys Trojan and trails the larger moon by 60°. Trojan moons are found near gravitationally stable points ahead or behind a larger moon.
Cassini is able to partly resolve Telesto's shape in this view, but surface features are too small to be visible from this distance.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on May 20, 2005, at a distance of approx. 533.000 Km (331.000 miles) from Telesto. The image scale is 3 Km (about 2 miles) per pixel. This view of Telesto has been magnified by a factor of three and sharpened to aid visibility".