Cruithne is not a satellite of the earth, since it orbits the sun and not the earth, although it does have close encounters with the earth, and has a 1:1 orbital ratio with the earth, it can certainly not be called an earth moon, as that would require it to orbit the earth, which it does not. See more
[after being informed that Earth has a second moon called "Cruithne"
So why is there not one romantic song with the word Cruithne in it? "Blue Cruithne of Kentucky"? Or "Cruithne River"? Or...
No-one can see it, it's miles away.
Because it was discovered in
No! That can't be right. Because the song is "Blue moon, I saw you standing alone." Not "with a small friend".