In our solar system (太阳系) , Earth and the other eight planets travel around the sun. Unlike Earth, Saturn (土星) has rings. The chart shows more ways in which Saturn and Earth are different.
Category (类别) | Earth | Saturn |
Average distance from the sun | 93 million miles | 890 million miles |
Length (长度) of day | 24 hours | 10 hours 39 minutes |
Length of year | 365 days | about 10, 585 days |
Number of moons (卫星) | 1 | 33 |
What it's made of | rock and water | gas (hydrogen and helium) |