The four brightest satellites of Jupiter, discovered by Galileo.
The four large satellites of Jupiter: Io, Europa, Callisto, and Ganymede, so named after Galileo Galilee who discovered them.
The four brightest and largest moons of Jupiter (Io, Europa, Ganymede, Callisto), named after Galileo Galilei, the 17th century astronomer who first observed them.
Jupiter's four largest moons: Io, Europa, Ganymede, and Callisto; discovered by Galileo Galilei in 1610
The four largest moons of Jupiter, discovered by Galileo in 1610 and discernible from Earth through a modest pair of binoculars.
The four largest moons of Jupiter, named after their discoverer Galileo.
the four largest satellites of Jupiter, first seen by Galileo in 1610: Io, Europa, Ganymede, Callisto