Future Space
Have you ever seen those stunning long-exposure photographs that capture the rotation of stars near the celestial north pole? At the heart of that swirling motion created by the celestial sphere’s movement lies the most famous of all stars, the North Star, or Polaris, as it has been known in Latin since the 18th century. Polaris is a mere 42 arcminutes away from the celestial north pole, which is almost one and a half times the diameter of the full moon. This might seem significant, but when compared to the vast expanse of the entire sky, it’s practically nothing. As a result, Polaris, unlike the stars further from the pole which trace increasingly larger arcs, appears nearly stationary even in long-exposure photographs. Stars very close to this imaginary point of rotation seem not to participate in the apparent rotation of the sky.
Credit Insane Curiosity