[Bon mots]

Virtually every sighted human being who has looked up at the sky has seen something up there that they weren't able to identify. By definition those are all "unidentified flying objects."

I can identify the sun, moon, big dipper, North Star, Little Dipper, Venus, the ecliptic and the "Seven Sisters". Everything else up there is a UFO.

[Phsstpok]

Those aren't flying. They're orbiting. That's different.

I remember a mnemonic from my childhood

"Take the arc to Arcturus then speed on to Spica"

If you follow the curve of the handle of the big dipper to the next bright start you'll find Arcturus ("Take the arc to Arcturus"). Then if you extend a straight line on in the same direction the next bright start is Spica ("then speed on to Spica").