Galilean moons
Members
Some models predict that there may have been several generations of Galilean satellites in Jupiter's early history. Each generation of moons to have formed would have spiraled into Jupiter and been destroyed, due to tidal interactions with Jupiter's proto-satellite disk, with new moons forming from the remaining debris.

Galilean moons

Section Title: Members
Table Section Text: Some models predict that there may have been several generations of Galilean satellites in Jupiter's early history. Each generation of moons to have formed would have spiraled into Jupiter and been destroyed, due to tidal interactions with Jupiter's proto-satellite disk, with new moons forming from the remaining debris.

Name	Image	Model of interior	Diameter (km)	Mass (kg)	Density (g/cm3)	Semi-major axis (km)	Orbital period(d) (relative)	Inclination (°)	Eccentricity

Io Jupiter I	-	-	3660.0 × 3637.4 × 3630.6	8.93×1022	3.528	421800	1.769 (1)	0.050	0.0041

Europa Jupiter II	-	-	3121.6	4.8×1022	3.014	671100	3.551 (2)	0.471	0.0094

Ganymede Jupiter III	-	-	5268.2	1.48×1023	1.942	1070400	7.155 (4)	0.204	0.0011

Callisto Jupiter IV	-	-	4820.6	1.08×1023	1.834	1882700	16.69 (9.4)	0.205	0.0074

Sentence(s)

Callisto (Jupiter IV) is the fourth and last Galilean moon and is the second largest of the four at 4820.6 kilometers in diameter.

final_sentence: Callisto (Jupiter IV) is the fourth and last Galilean moon and is the second largest of the four at 4820.6 kilometers in diameter.