1. Sirius
2. Canopus
3. Rigil Kentaurus
4. Arcturus
5. Vega
6. Capella
7. Rigel
8. Procyon
9. Achernar
10. Betelgeuse
2. Canopus
3. Rigil Kentaurus
4. Arcturus
5. Vega
6. Capella
7. Rigel
8. Procyon
9. Achernar
10. Betelgeuse
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Other than the sun, or you talking about the brightest star we can see; that is not the same as it's literal brightness from a given distance to any such star.
The brightest star in the universe is still probably in a galaxy so damn far away, we cannot even see it.
We probably would never know about it, and will never find it.
The blue giants burn brightest, and then live short lives; so this would be a start with an extremely short life.
Though you could count gamma-ray bursts, which is thought to be a stellar explosion; which is so bright that it can be seen for a moment from the other end of the observable universe.
We are also assuming that the universe is finite.
There must be a limit to brightness, so theoretically in an infinate universe; there is a star so bright that it is infinitely close to the limit.
The brightest star in the universe is still probably in a galaxy so damn far away, we cannot even see it.
We probably would never know about it, and will never find it.
The blue giants burn brightest, and then live short lives; so this would be a start with an extremely short life.
Though you could count gamma-ray bursts, which is thought to be a stellar explosion; which is so bright that it can be seen for a moment from the other end of the observable universe.
We are also assuming that the universe is finite.
There must be a limit to brightness, so theoretically in an infinate universe; there is a star so bright that it is infinitely close to the limit.
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No way to know for sure, since we can't see details about all the stars in the universe.
There are about 200 billion stars in our galaxy, and about 200 billion galaxies - that's a lot of stars.
And "brightest" is subjective - our sun is the brightest star in our sky because we are so close to it.
So there are 2 brightness measurements:
- absolute magnitude, which is a measure of how bright a star is at a standard distance of 10 parsecs (about 32.6 light years)
- apparent magnitude, a measure of how bright a star appears in our sky
The larger the number, the dimmer the star.
So a star of magnitude 2 is brighter than one with a magnitude of 4.
And a star of magnitude -1 is brighter than one with magnitude 2.
The brightest star that we know of in our galaxy is Cygnus OB2-12; absolute magnitude -12.2 (as a comparison, our sun only has an absolute magnitude of 4.75).
The brightest star in the local neighbourhood is R136a1 (in the Large Magellanic Cloud) at -12.5.
The brightest apparent magnitude star in our skies is Sirius (besides the sun, which has an apparent magnitude of -26.74) with an apparent magnitude of -1.46.
There are about 200 billion stars in our galaxy, and about 200 billion galaxies - that's a lot of stars.
And "brightest" is subjective - our sun is the brightest star in our sky because we are so close to it.
So there are 2 brightness measurements:
- absolute magnitude, which is a measure of how bright a star is at a standard distance of 10 parsecs (about 32.6 light years)
- apparent magnitude, a measure of how bright a star appears in our sky
The larger the number, the dimmer the star.
So a star of magnitude 2 is brighter than one with a magnitude of 4.
And a star of magnitude -1 is brighter than one with magnitude 2.
The brightest star that we know of in our galaxy is Cygnus OB2-12; absolute magnitude -12.2 (as a comparison, our sun only has an absolute magnitude of 4.75).
The brightest star in the local neighbourhood is R136a1 (in the Large Magellanic Cloud) at -12.5.
The brightest apparent magnitude star in our skies is Sirius (besides the sun, which has an apparent magnitude of -26.74) with an apparent magnitude of -1.46.
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Sirius, also known as the Dog Star, is the brightest star in the sky. Its name comes from the Greek word for scorching.
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lol at the idiot who said the sun.
I think "F" class stars are one of the brightest, but we don't know which is the brightest in the universe. There's a ton of stars in the universe, lots of them are bright.
I think "F" class stars are one of the brightest, but we don't know which is the brightest in the universe. There's a ton of stars in the universe, lots of them are bright.
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Sirius
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As far as we know, it is Sirius :D
lol "the sun"...
lol "the sun"...
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The sun
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Britney Spear