Distances

1. How many metres are there in a kilometre?

2. How many km are there in 1 AU?

3. What is 1 AU?

4. What is the distance between the Sun and Pluto?

5. What is a light year?

6. How far does light travel in space in 1 second?

7. How far does it travel in a year?

8. What is the distance to the next nearest star in light years? (What is this star?)

9. What is the diameter of the Milky Way is light years?

10. How far away is the next nearest galaxy in light years? (What is this galaxy?)

11. How many light years are in a parsec?

12. What is a Mpc?

13. The diameter of our local cluster of galaxies is about 1 Mpc. What is this in light years?

14. The most distant object seen in the Universe is about 18 billion light years away. What is it?