In our solar system, we have the planets that order from (measured by closeness to the sun) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and if you insist, you might include Pluto.
I don’t remember a lot of facts, but from what I recall from geography, Jupiter, Saturn, Uranus and Neptune are gas planets and the other 4 are solid was this common knowledge I’m too living under a rock to realise–
Also Saturn is my favorite because I love the rings