<Tr> <Td> Io, Europa, Ganymede, and Callisto </Td> <Td> Natural satellites </Td> <Td> The four largest moons of Jupiter, known as the Galilean moons after their discoverer Galileo Galilei . He referred to them as the "Medicean Planets" in honor of his patron, the Medici family . They were known as secondary planets . </Td> </Tr> <Tr> <Td> Titan, Iapetus, Rhea, Tethys, and Dione </Td> <Td> Natural satellites </Td> <Td> Five of Saturn's larger moons, discovered by Christiaan Huygens and Giovanni Domenico Cassini . As with Jupiter's major moons, they were known as secondary planets . </Td> </Tr> <Tr> <Td> Pallas, Juno, and Vesta </Td> <Td> Asteroids </Td> <Td_colspan="2"> Regarded as planets from their discoveries between 1801 and 1807 until they were reclassified as asteroids during the 1850s . <P> Ceres was subsequently classified as a dwarf planet in 2006 . </P> </Td> </Tr> <P> Ceres was subsequently classified as a dwarf planet in 2006 . </P>

Information about solar system and its 8 planets in hindi