Planetary CharacteristicsOnline version Match the characteristic or feature to the right planet to unlock the next missing piece of Spaceship 4406! by Sophia Corugedo 1 Neptune 2 Uranus 3 Saturn 4 Jupiter Solid Center the size of Earth Furthest Planet From the Sun Smallest Gas Giant 1 year here is 165 Earth Years Ice Giant Coldest of any planet 1st planet discovered with a telescope Rotates in a retrograde direction The flattest planet Made mostly of hydrogen Has more moons than any other planet The most distant planet that can be seen with the naked eye. Largest planet in the Solar System Has the shortest day of all the planets Its moon Ganymede is the largest moon in the solar system. Its clouds make it look like it has stripes