Neptune is 4.5 billion km from the Sun. That is 1,617 metres for us on this tour. Neptune was discovered in 1846. In 2011 it made its first lap around the sun since it was discovered because one year on Neptune is the same as 165 Earth years. This is the last planet we visit on our journey. It’s now quite a bit of a walk to Pluto.

Joe's Solar System Walk
  1. The Sun
  2. Mercury
  3. Venus
  4. Earth
  5. Jupiter
  6. Saturn
  7. Uranus
  8. Neptune
  9. Pluto