- #1
brum
- 81
- 0
Ok, let's say you see a bright light in the night sky. How far away is it?
Well, it's bright; so it could either be so bright because:
1) it's so close to Earth
2) it's simply very bright
If a star is dim, how do we know if that is because it is far away or if it's simply dim by its nature.
What I'm basically asking is: How do we figure out how far away a star is?
Well, it's bright; so it could either be so bright because:
1) it's so close to Earth
2) it's simply very bright
If a star is dim, how do we know if that is because it is far away or if it's simply dim by its nature.
What I'm basically asking is: How do we figure out how far away a star is?