Polaris A is a white supergiant.
Polaris is actually a cluster of stars close together; one of which is a giant star, the others are dwarfs.
Polaris is a well known cepheid variable and as such is a member of a class of pulsating variable stars.
See related question.
No. Polaris is a system of three stars, all of which are larger than the sun.
Polaris is about 7.5 times larger than the Sun.
I hope if you know enough to use the term "Main Sequence" as it relates to stars, their formation and life, you know the answer?
Cheers,
Robert
Polaris is a not the brightest star in the sky, but that is because we are very far away from it. If you were to visit Polaris, you would find it would be even brighter than the Sun
Polaris is a star.
Is a Polaris star or Pollux star bigger
I think it's pollux
because polaris a star
The Sextopia star
That object is easily visible with a pair of binoculars. A star's apparent brightness is exactly 100 times less than another star if its apparent magnitude is +5 greater. So, the star of magnitude 7.3 appears 100 times fainter than a star of magnitude 2.3. (Polaris is a bit brighter than magnitude 2.3).
The name of the north star is Polaris. As the brightest star in the constellation of Ursa Minor it is also called alpha Ursae Minoris. It is actually a multiple star comprised of Polaris Aa, Polaris Ab and Polaris B.
I'm not too sure what other people think. I know that the Sun shines brighter than Sirius.
No. Sirius is the brightest star in the night sky. Polaris is much farther down the list.
The north star, otherwise know as Polaris, is brighter than many other stars because it is much closer and perhaps larger than many other stars.
As seen from Earth, yes, Sirius is the brightest star in the night sky. In terms of actual brightness, no.
A star that is brighter than another.
Look up in the sky and you will see. Polaris is actually quite dim, compared to other stars and planets. Even at it's dimmest, Mars is brighter than Polaris.
It doesn't. A lot of stars seem larger and brighter than it. In fact, Polaris is the 49th-brightest star in the sky. To us, it is not a particularly bright star. It is important because it seems to be still as other stars rotate around it.
A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.
Because it actuall IS brighter.
The star might be closer to the Earth, or it is just brighter than the others. :D
Rigel is brighter than Betelgeuse.
because polaris a star
While Pollux is actually brighter than Sirius, Sirius appears brighter because it is several times closer.