Galilean moons century when other inner moons were discovered, and Marius' names became widely used. Galileo was able to develop a method of determining longitude based on the timing of the orbits of the Galilean moons. The times of the eclipses of the moons could be precisely calculated in advance, and compared with local observations on land or on ship to determine the local time and hence longitude. The main problem with the technique was that it was difficult to observe the Galilean moons through a telescope on a moving ship; a problem that Galileo tried to solve with the invention of
Galilean the members of a fanatical sect (Zealots), followers of Judas of Galilee, who fiercely resented the taxation of the Romans, and whose violence contributed to induce the Romans to vow the extermination of the whole Galilean race. "Galileans" was also term used by some in the Roman Empire to name the followers of Christianity, called in this context as the Galilaean faith. "Galilean", as an adjective, describes some aspects of mathematics or astronomy associated with Galileo: see for example Galilean moons and Galilean transformation. "Galileans" are also a fictional race of living planets in the "Ben 10" universe that possess