One of the four largest moons of Jupiter, discovered by Galileo Galilei.
Any similar moon of a planet that is comparable to the Galilean satellites in size and composition.
समान उपग्रह
English Usage: Some astronomers believe that exoplanets might have Galilean satellites of their own.
Hindi Usage: कुछ खगोलज्ञों का मानना है कि एक्सोप्लैनेट के अपने गैलीलियन उपग्रह हो सकते हैं।