Hello!
Quote:
Originally Posted by
effortless View Post
... I guess I could have done it mathematically but I’m too lazy.
Mee too (lazy), but if you really want to impress your six year old grandson then you tell him that the fartest you can see with your naked eye is the Andromeda Galaxy (M31) which is 2.5 million light years away. Which in km would be: 23651826000000000000
Strictly, you aren't seeing the Andromeda Galaxy, you are seeing light that left Andromeda 2.5million years ago and has only just arrived on earth!