Earth's precession: The Earth's rotational axis "wobbles" very slowly, taking about 26,000 years per rotation.
Depending on where we are in our wobble, the North pole is pointed toward a particular star - the north star.
Yes, Polaris will no longer be the North Star in around 12,000 years due to the Earth's axial precession, which causes the position of the North Star to change gradually over time. The next star to take its place as the North Star will be Gamma Cephei.
The movement of stars across the night sky, much like the movement of the sun across the day sky, is the result of the rotation of the Earth. We view the sky from a moving platform, our planet.
a change in the relationship of the north star and the north pole would explain the periodic nature of swine flu, etc? Yes it has
I wish upon a star
North star, or Polaris, is the name of a bright star that is CURRENTLY near the celestial north pole. Since the position of the north pole will change in the future, Polaris will still be called Polaris, but it will no longer be the north star.
In about 13,000 years, the North Star will be Vega, which is part of the constellation Lyra. This change occurs due to the Earth's axial precession, a gradual wobbling of its axis that causes a shift in its alignment with different stars over long periods of time.
The North Star sits at a point in the sky near where the northern axis of the earth sits. This means that the North star's relative position in the sky does not change. In fact, in a 24 hour Earth cycle, the north star only moves in a small circle.
Currently the Earth's pole points toward Polaris in Ursa Minor. 5000 years ago it pointed towards Vega.
Nuclear fusion is the process that causes a star to begin producing vast amounts of energy by converting hydrogen into helium through a series of fusion reactions in its core.
The onset of iron fusion causes a star to become a supernova. This process occurs when the star's core collapses due to the inability to support the fusion of iron, leading to a catastrophic explosion.
A. the earth is round
The star "Polaris" is the North Star.