Pole Star

¹

noun

1. the Pole Star
   the star closest to the N celestial pole at any particular time. At present this is Polaris, but it will eventually be replaced by some other star owing to precession of the earth's axis

pole star

²

noun

1. a guiding principle, rule, standard, etc

Example Sentences

“So you can find a composition where Polaris is in the shot, and you’ll get concentric rings, or if you move 90 degrees left or right to the pole star, then there’s a diagonal line that’s called the celestial equator.”

From Los Angeles Times

One could be “earth,” “moon,” “the pole star” or “curdled milk.”

From Literature

You can identify the pole star by looking directly north and locating a star that hangs distinctly by itself.

From BBC

To find it, Massey suggests first searching for the pole star, which is always in the same place in the sky.

From BBC

You can then use free planetarium software online to determine where the comet will be moving in relation to the pole star on the night you're looking at it.

From BBC