The planetary surface or crust.
Eris is an outside planet
It is the outside planet. We classified planet to be inside or outside using asteroid belt as the boarder line.
A planet found outside of our solar system is called an "exoplanet" or "extrasolar planet"
Neptune is a planet in our solar system and is located outside the orbit of Earth. It is the eighth planet from the Sun.
It is an outer planet.
jupiter is an outside planet because it is located outsid the asteroid belt.
It is a planet just outside our Solar System.
Mercury is an inner planet because it is the closest one to the sun. Inner planets: Mercury Venus Earth Mars
Saturn an outer planet because it is outside of the asteroid belt. If it is outside of the asteroid belt, then it is outside planet. Outer planets are also known as Jovian planets or "gas planets."
Atmosphere
outside the planet
Jupiter is an outside planet. It is located beyond the orbit of Mars, making it one of the outermost planets in our solar system.