What number is Earth in the order of the solar system's planets, counted from the Sun?

Explanation

Earth (also called Tellus) is the third planet from the Sun in our solar system. Earth is 4.54 billion years old and is a planet with an atmosphere. Its distance from the Sun is approximately 150 million kilometers, which corresponds to about eight light-minutes. Our solar system consists of 8 planets orbiting the Sun. The inner planets (the rocky planets) are, from the Sun: Mercury, Venus, Earth, and Mars, and the outer planets (the gas giants): Jupiter, Saturn, Uranus, and Neptune.