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Brightness is defined as the luminousity as seen from Earth. So the brightest star is the Sun.

HD 93129A is a blue supergiant and one of the most luminous stars in the Milky Way and is 5,500,000 times more luminous than the Sun.

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13y ago
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12y ago

Pistol star is about 300-340 times larger than our sun . This star is a blue hyper giant, located approximately 25000 light years away from earth in the direction of Sagittarius (near galactic center) .

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14y ago

There are many stars hotter than our Sun. for example Vega and Sirius

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11y ago

Giants like Pollux, Arcturus, and Aldebaran.

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Arcturus is bigger than the sun.

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A supergiant

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14y ago

That's called a supernova.

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11y ago

aldebaran

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Q: What super is a star that is millions of times brighter than the sun?
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How many times brighter is a magnitude 1 star than a magnitude 2 star?

Good, a nice question with a definite answer. The magnitude1 star is 2.512 times brighter (near enough).


Why does star Sirius appear brighter than star pollux?

While Pollux is actually brighter than Sirius, Sirius appears brighter because it is several times closer.


What is the most luminous star?

Contenders are:- LBV 1806-20 - ~ 5,000,000 times brighter than the Sun. Pistol Star - ~ 1,000,000 times brighter than the Sun (Variable) Cygnus OB2-12 ~ 6,000,000 times brighter than the Sun HD 93129A ~ 5,500,000 times brighter than the Sun. Eta Carnae ~ 5,000,000 times brighter than the Sun.


Which is brighter larger stars or smaller stars?

Brightness is related to distance. However, from the same distance, an O class star is much much brighter than a M class star. As a comparison, an O class star would appear about 100,000 times brighter than our Sun, whereas a M class star could appear 0.0017 dimmer than our Sun, if the Sun was replaced with each star.


Is a third magnitude star 10 times brighter then a 4th magnitude star?

Absolutely. When speaking of the brightness you see from earth, you are speaking of apparent magnitude. When considering the type of star, it's composition, stage, age, size, distance, etc., a star is also assigned an absolute magnitude, so the ranking of the star if seen from similar distances reveals the truth about a star. 3.26 light years away is the assumed distance in ranking stars. A star many times farther away than a second star may appear much brighter than the second star which is much closer, based partially on the various factors mentioned above. The lower the value for a magnitude, the brighter, or more correctly, the more luminous, a star. Thus, a 3.4 is brighter than a 5.1, for example. Long ago the scale was originally an arbitrary ranking based on certain stars that were considered to be the brightest. Since then, stars even brighter have been identified, thus the need to use values even less than zero. Only a handful of stars fall below zero in apparent magnitude. So then it is not significant where in the sky (in what constellation) a star lies, the magnitude value determines the brightness.

Related questions

What is a star that is millions of times brighter than the sun?

a Supergiant


What super is a star that is a million of times brighter than the sun?

super-giant star


What is a gigantigc explosion of a star millions or billions of times brighter than the star was?

A nova or supernova.


How bright are star?

In absolute terms, some are brighter than our Sun - in some rare cases, millions of times brighter - while others are much less bright than our Sun.


How many times brigther will a star be than an identical star that twice as faraway?

It is four times as brighter. It is four times as brighter.


Star A is a first magnitude star. Star B is a sixth magnitude star. Which star is brighter and by how much?

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.


How many times brighter is a magnitude 1 star than a magnitude 2 star?

Good, a nice question with a definite answer. The magnitude1 star is 2.512 times brighter (near enough).


How many times brighter is a first magnitude star than a third magnitude?

2 magnitudes brighter means it's about 2.512 x 2.512 times brighter. So that's about 6.31 times brighter.


Why does star Sirius appear brighter than star pollux?

While Pollux is actually brighter than Sirius, Sirius appears brighter because it is several times closer.


What is the most luminous star?

Contenders are:- LBV 1806-20 - ~ 5,000,000 times brighter than the Sun. Pistol Star - ~ 1,000,000 times brighter than the Sun (Variable) Cygnus OB2-12 ~ 6,000,000 times brighter than the Sun HD 93129A ~ 5,500,000 times brighter than the Sun. Eta Carnae ~ 5,000,000 times brighter than the Sun.


Which star is cooler and many times brighter than Earth's Sun?

The Sextopia star


How many times brighter will a star be than an identical star thats twice as far away?

4 times