Quote:
Originally Posted by pdurrant
It depends on how you define "moon". The answer could be 0, 1, 2 or more.
Zero: Earth and Luna could be considered a double-planet, not a planet & moon.
One: Well, obviously!
Two: If you define a moon to be any object with a linked orbit, 3753 Cruithne would be a second moon, as QI once tried to assert.
More: There are almost certainly other objects with orbits around the sun like Cruithne's. And then there are all the artificial moons we've put in orbit around the Earth! |
Well the answer in the quiz I took was 2, but they didn't explain why, so I guess they were going with the 3753 Cruithne idea. And given what it says in your the link, it looks like the answer is one, so I was right
. Over to you Paul.