A light year

A light year (9.46 trillion km)



Neat Ratios ...

A light year (9.46 trillion km)

  • is 4000 x Diameter of the star UY Scuti, largest known star (2.377 billion km)...more
  • is 10000 x Length (circumference) of Earth's orbit around the Sun (940 million km)...more

If this was a standard unit ...

Is That A Big Number? - The Book

Yes, there's now a book based on these numbers. Oxford University Press: July 2018.

Click here to learn more about it.

Click here for Podcast: Andrew Elliott interviewed for New Books Network.