A star at or close to a celestial pole, especially the Pole Star: Alpha Draconis used to be the north polar star
More example sentences
- Yes, that's the first thing, like the Big Dipper here, the North polar star.
- These 38 stars were the 36 ‘fundamental stars’ of Maskelyne together with two further polar stars.
- The queen, however, is as constant as the polar star, and it is that continuity, stability and dignity which Britons are now celebrating.
Definition of polar star in:
- The US English dictionary