GENERAL KNOWLEDGE

Detailed explanation-1: -polestar, also spelled pole star, also called (Northern Hemisphere) North Star, the brightest star that appears nearest to either celestial pole at any particular time. Owing to the precession of the equinoxes, the position of each pole describes a small circle in the sky over a period of 25, 772 years.

Detailed explanation-2: -The North Star or Pole Star – aka Polaris – is famous for holding nearly still in our sky while the entire northern sky moves around it. That’s because it’s located nearly at the north celestial pole, the point around which the entire northern sky turns. Polaris marks the way due north.

Detailed explanation-3: -What is Polaris? Polaris is a “pulsing” star, a type of star also known as a Cepheid variable, which means that it appears to vary in brightness ever so slightly-only one tenth of a magnitude-over a time frame of just under four days.

Detailed explanation-4: -Answer: The Pole Star is the star that is known to retain its position in the sky always. We can locate the position of the Pole Star with the help of the constellation Saptarishi. If an imaginary line is drawn joining the “pointer stars” of the Saptarishi and extended further, it will point to the Pole Star.