Europa (moon)

Europa (aka Sol Vb) was a natural satellite, or moon, of Jupiter.

Europa was the smallest of the four so-called Galilean moons (the others were Callisto, Ganymede and Io) discovered by Galileo Galilei in the 17th century (and possibly independently by Simon Marius). With a diameter of 3,212.6 km, Europa is slightly smaller than Luna and the sixth-largest moon in the Sol system.

The first unit to carry the Penguin-class fighters, the 23rd Attack Squadron, began training flights off Europa from the carriers Barracuda and Stingray in November, 2230. (23rd-Century Carriers and Fighters)

Namesake starships
In the late 24th century, a class of starships named after natural satellites in the Sol system was commissioned. One of these was the USS Europa. (' novel ')