The Cassini spacecraft captured this “best yet” image of Saturn’s moon Calypso from a distance of 63,000 miles (101,000 km). It is a tiny moon only 14 miles (22 km) across. The shape being irregular, is similar to other small Saturnian moons and asteroids. Calypso trails the moon Tethys in its orbit by 60 degrees, interestingly enough Tethys has another moon leading it by 60 degrees. Sounds to me like both moons occupy Lagrange points , a pretty interesting topic on its own.

Image Credit: NASA / JPL / ESA / ASI