navigator

Columbus was a famous navigator.

Uh, it's even possible that Polynesians navigators had already sailed to the Americas centuries before Columbus.

So navigators might see one star pair setting together and, uh, would know how far north or south of the equator they were.

And navigators could use this pair of stars as reference points, because they rise or set together only at specific latitudes.

And, uh, young would-be navigators sat by the stones at night and turned in different directions to memorize the constellations they saw.

When you wanted a star expert, you asked for a navigator.