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.
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.
Sirius has a lower absolute magnitude than Rigel. Sirius is one of the brightest stars in the sky with an absolute magnitude of 1.42, while Rigel has an absolute magnitude of -8.1, making it much brighter than Sirius.
The brightness of a star depends not just on its surface temperature, but also on its size and distance from Earth. While Rigel is hotter than the Sun, it is also a much larger and more luminous star. Therefore, even though the Sun is cooler than Rigel, it appears brighter to us because it is much closer and has a larger luminosity due to its size.
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.
Rigel is a blue supergiant star with a radius about 78 times larger than the Sun. If we assume that Earth's radius is 1/100th of the Sun's radius, then you could fit about 608,400 Earths inside Rigel.
Rigel is brighter than Betelgeuse. Rigel is a blue supergiant star that is one of the brightest stars in the night sky, while Betelgeuse is a red supergiant star that is dimmer in comparison.
Rigel is brighter than Betelgeuse. Rigel is a blue supergiant star and one of the brightest stars in the night sky, while Betelgeuse is a red supergiant and although it is one of the largest stars known, it is not as bright as Rigel.
The sun appears brighter than Rigel does because it is much closer to us by a factor of about 50 million.
no you are stupid if you are answering this
Betelgeuse has an apparent magnitude of 0.42(v) and an absolute magnitude of -6.02. Rigel has an apparent magnitude of 0.12 and an absolute magnitude of -7.04. So Rigel is brighter.
Well, honey, Sirius takes the crown for being the brightest star in the night sky, shining like a diamond in the rough. Rigel may be a hotshot in its own right, but it can't outshine the sass and sparkle of Sirius. So, if you're looking for some celestial bling, Sirius is the way to go.
yes
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.
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.
Sirius has a lower absolute magnitude than Rigel. Sirius is one of the brightest stars in the sky with an absolute magnitude of 1.42, while Rigel has an absolute magnitude of -8.1, making it much brighter than Sirius.
Rigel is approximately 120,000 times brighter than the Sun. This high luminosity is due to Rigel's much larger size and higher temperature compared to the Sun.
Yes, Rigel has a greater magnitude than Sirius. Rigel has an apparent magnitude of around 0.12, making it one of the brightest stars in the night sky, while Sirius has an apparent magnitude of about -1.46, making it the brightest star in the night sky.