Calypso

Calypso is a moon of Saturn, also designated as Saturn XIV or Tethys C.

Calypso is co-orbital with the moon Tethys, and resides in Tethys' trailing grav point (L5), 60 degrees behind Tethys. The moon Telesto also resides in the other (leading) grav point of Tethys, 60 degrees in the other direction from Tethys. Calypso and Telesto have been termed "Tethys trojans", by analogy to the trojan asteroids.

Like many other small Saturnian moons and small asteroids, Calypso is irregularly shaped, has overlapping large craters, and appears to also have loose surface material capable of smoothing the craters' appearance. Its surface is one of the most reflective (at visual wavelengths) in the Sol system, with a visual geometric albedo of 1.34. This very high albedo is the result of the sandblasting of particles from Saturn's E-ring, a faint ring composed of small, water-ice particles generated by Enceladus' south polar geysers.[9]