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It doesn't. The magnitude scale is a bit counter-intuitive (a polite way of saying strange). The higher the number, the lower the magnitude. You will notice that the sun has by far the lowest number on the scale. See the link for more.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoSimply because it is closer!
If you have 2 identical light bulbs, one close, and one far away, the closer one would appear brighter even though they would both have the same brightness.
Wiki User
∙ 14y agoThe distance also plays a role. The light from our Sun takes 8 minutes to reach us; the light of the next star, Toliman, takes over 4 years.
Wiki User
∙ 8y agoThey are stars which generate light and heat through the process of thermonuclear fusion.
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Which star has the less absolute magnitude rigel or Sirius?
Sirius has less absolute magnitude than Rigel. Sirius is smaller and less luminous than Rigel, but much closer to us, so Sirius appears brighter. Sirius, in fact, is the brightest star in our sky (with the exception of our own star, the sun.) Rigel is still pretty bright, but many times farther away from us than Sirius.
What does rigel have brighter then Sirius?
I'm not sure exactly what detail you want, but here's a start. Rigel is a triple star system. The main star of the three is a very luminous star. It is a blue supergiant star.
Temperature of Rigel?
There is more than one star in the Rigel "system". The main star, in terms of brightness, is Rigel A. That has a surface temperature of about 12,000 degrees Celsius.
Betelgeuse is the brightest star in the constellation Orion However Betelgeuse is a cool red star that is 520 light years from Earth How can Betelgeuse look so bright if it is that far away?
It isn't the brightest star - at least, usually Rigel is brighter. However, Betelgeuse is variable, and can sometimes be brighter than Rigel. Wikipedia lists its luminosity as 105,000 times the luminosity of our Sun; and the distance, as 640 light years. Assuming these numbers, this would make it as bright as a star that is 10.5 times as bright as our Sun, at a distance of only 6.4 light years. In other words, the extreme luminosity compensates for its distance.
Which star is cooler and many times brighter than Earth's Sun?
The Sextopia star
Which star is brighter Betelgeuse or Rigel?
Rigel is brighter than Betelgeuse.
Why does the sun seem brighter than Rigel?
The sun appears brighter than Rigel does because it is much closer to us by a factor of about 50 million.
Is there a star that is hotter than the sun?
Yes, many stars are brighter than our sun. Deneb and Rigel are two examples. Rigel is over 100,000 times brighter than Sol.
Which is brighter Sirius or Rigel?
Sirius has a luminosity of: 25.4 while Rigel has a luminosity of: 66,000 Making Rigel brighter than Sirius.
Does rigel have a greater magnitude than sirus?
No, which means that Rigel is brighter.
Is Rigel brighter than Aldebaran?
yes
Which star has the less absolute magnitude rigel or Sirius?
Sirius has less absolute magnitude than Rigel. Sirius is smaller and less luminous than Rigel, but much closer to us, so Sirius appears brighter. Sirius, in fact, is the brightest star in our sky (with the exception of our own star, the sun.) Rigel is still pretty bright, but many times farther away from us than Sirius.
Why is Rigel appears brighter than aldeberan even though aldeberan is technically brighter than Rigel?
The absolute magnitude of Rigel is -7.92 while that of Aldebaran is -6.41. This means that Rigel is approx 4 times brighter than Aldebaran - technically. So the question is based on a flawed grasp of absolute magnitude.
Does Rigel have greater apparent magnitude than Sirius?
No, which means that Rigel appears brighter.
Is Rigel brighter than the Sun?
no you are stupid if you are answering this
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.
What does rigel have brighter then Sirius?
I'm not sure exactly what detail you want, but here's a start. Rigel is a triple star system. The main star of the three is a very luminous star. It is a blue supergiant star.
