The Pole Star Will Change..., It does every few thousand years Options

[Mandrake]

The Pole Star once was Thuban (3000 B.C.), the third star from the end of the tail in Draco.

In a little more than 5,000 years from now, Alderamin, the brightest star in the constellation Cepheus, will be almost the Pole Star.

About 7,000 years from now, Deneb, the brightest star in Cygnus, will be the pretender for the Pole Star for a while.

In about 12,000 years from now, Vega, the brightest star in Lyra, will be the Pole Star. Vega will be a brilliant Pole Star some six times brighter than Polaris.

There are long periods when there is no Pole Star at all.

At the present time there is no Pole Star in the southern sky.

[NATURE]

great discussion !!!

Abhijit is the Indian name of the star I mentioned - Vega. Polaris doesn't travel around it. As of today it is vice
versa. Yes, in 7000 years' time it will appear to be the other way round.

also it's the brightest star in the constellation Lyra and the 5th brightest star in the sky.
after sirius and arcturus, it's the 3rd brightest in the northern sky. distance is around 23.5
light years from earth.

here's the picture of vega taken by spitzer space telescope, just for you though u have it.



about pole star: a star that lies in the direction shown by one of the earth's poles. if it's the north pole
then north star and if it's south pole then south star. it's an indicator for celestial navigation cause
it doesn't change its position frequently like all other stars.

here's a view: how daily rotation of earth creates appearance of the rings around the north pole.



here's the quiz:
what are the poles stars in the north and south directions ? when will the reach the maximum declination ?