In the Big Dipper constellation, the next to the last star in the handle is actually a double star– at least to our naked eye. If one looks really closely on a clear night, one will see, somewhat faintly, a second star close to the brighter one.
The distance between those two stars is greater than the distance between Earth and the brighter star.
A little known fact of lesser known value, though I think it’s pretty cool. And awesome. And not totally useless.
