This picture shows how big Enceladus is. Enceladus is one of Saturn's moons. It is the sixth largest moon of Saturn. It is about as big as England. The diameter of Enceladus is 505 km (314 miles). Of course, this picture doesn't show where Enceladus is located. The moon is NOT in the sea next to England! It is in orbit around Saturn.
Image courtesy NASA/JPL/Space Science Institute.