The spelling of the term "pole star" is straightforward, reflecting its pronunciation. The word "pole" is spelled as it sounds, with the "o" and "e" forming a diphthong /oʊ/. The second word "star" is also spelled phonetically – the "a" is pronounced /ɑ/ as in "car." Together, the two words create a compound noun, which refers to the brightest star located closest to the North Pole, known in astronomy as Polaris. Phonetic transcription can be a useful tool for understanding the spelling of English words.
The term "pole star" refers to a prominent star that appears close to either of the celestial poles, which are the points in the sky directly above the Earth's North and South poles. The pole star is also known as the North Star or Polaris when it appears in proximity to the North Pole. Similarly, when it appears near the South Pole, it is referred to as the South Star.
The pole star serves as a reference point for navigation and astronomy due to its fixed position relative to the Earth's rotation axis. It can be used to determine direction and establish latitude, especially in the northern hemisphere. Its stable position makes it a valuable celestial marker, as other stars seem to revolve around it due to the Earth's rotation.
For observers in the northern hemisphere, the pole star appears almost stationary at a fixed altitude, aligned with the Earth's axis. Conversely, it is not visible in the southern hemisphere due to its position near the northern celestial pole.
The pole star has been used for centuries by navigators, explorers, and astronomers to find their way and study the heavens. Its steady presence in the night sky has made it a symbol of guidance, stability, and constancy. In various cultures and mythologies, the pole star has been associated with concepts like navigation, steadfastness, and enlightenment.
The name of the star nearest to the north pole of the heavens.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "pole star" originated from Old English, where it was known as "stēorra pāol", meaning "star of the pole". The term refers to the North Star or Polaris, which is a prominent star in the constellation Ursa Minor and serves as a guide for navigators to determine true north. The term "pole" refers to the celestial pole, an imaginary point in the sky around which the stars appear to rotate due to the Earth's rotation. "Star" is derived from the Old English word "stēorra", meaning "star" or "celestial body". Hence, the etymology of "pole star" signifies a star located near the celestial pole.