1

Mercury

Rocky, ferrous. 5.8m km from Sun. 4.8 km diameter.

2

Venus

Rocky, ferrous. 108m km from Sun. 12.1 km diameter.

3

Earth

Rocky, ferrous. 150m km from Sun. 12.8 km diameter.

4

Mars

Rocky. 228m km from Sun. 6.8 km diameter.

5

Jupiter

Liquid hydrogen. 778m km from Sun. 142.8 km diameter.

6

Saturn

Hydrogen, helium. 1427m km from Sun. 120 km diameter.

7

Uranus

Icy hydrogen, helium. 2869m km from Sun. 51.8 km diameter.

8

Neptune

Icy hydrogen, helium. 4496m km from Sun. 49.5 km diameter.

9

Pluto

Icy, rocky. 5900m km from Sun. 2.7 km diameter.