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What is the brightest star in the universe?
The brightest star that is not the sun is Sirus. Sirus is a 1st magnitude star. Sirus is 8.7 light years away from Earth, which is not to far away(for a star at least). Si…rus is obviously not too big but is very bright and close to Earth! Sirus is in the constellation Canis Major, which in English means "Big Dog".
The north star which is Polaris isn't the brightest star, it is the 45th brightest star in the night time sky standing between Castor A (α Gem) the 44th brightest star and Mi…rzam ( β CMa ) the 46th brightest star
From Earth the Sun is obviously the brightest star. Otherwise Sirius (The Dog Star) is brightest star discovered so far with a magnitude of -1.42. One of the most luminous… stars in the Galaxy is called The Pistol Star (but dust hides it from view) Yes, from Earth the Sun is the brightest star. But that's not the question: the brightest star in the universe is certainly not the Sun, nor is it Sirius; Spica for instance, is over 10 times the mass of the Sun, thus having a far greater luminosity. But the light years separating Spica from Earth reduces it to the 15th brightest star in the nighttime sky. And the Pistol Star is only one of the brightest stars in the Milky Way Galaxy... The universe however, houses many stars superior to the Pistol Star. The problem with the question is it refers to such an astronomical entity, the vast universe. And as such, it may never be able to be answered with complete accuracy... That isn't the question either, the brightest star known in the universe is R136a1, a blue hyper-giant which is not only the most massive star known, at 265 solar masses, but the brightest. It shines at 8,700,000 times the luminosity of the sun and is a member of the R136, a super star cluster around the centre of the tarantula nebula in the the magellanic cloud, a satellite galaxy of the Milky way.
The Sun is the brightest star for us. Apart from the Sun, the next brightest star as seen from Earth is Sirius.
The Sun (Sol) has an apparent magnitude of - 26.74 Siruis (Dog star) with an apparent magnitude of -1.47 (Brightest in the Northern Hemisphere) Canopus with an appare…nt magnitude of -0.72 (Brightest in the Southern Hemisphere) Arcturus with an apparent magnitude of -0.04 (Variable) Alpha Centauri A with an apparent magnitude of -0.01 Vega with an apparent magnitude of 0.03 Rigel with apparent magnitude of 0.18 Procyon with apparent magnitude of 0.34 Achernar with apparent magnitude of 0.50 Betelgeuse with apparent magnitude of 0.58 (Variable) A lower number means more brightness. All of these are apparent magnitudes. If you mean intrinsic magnitude, the answers are somewhat different. Sirius and Alpha Centauri A are bright because they're close to us. Canopus, on the other hand, is much brighter, but also much further away (Sirius is about 8 light years away; Canopus is more than 300 light years away). Off subject: Some planets are brighter (in apparent magnitude) than stars; for example, when Venus appears in the sky, she is always the brightest object (after the Sun and the Moon). In fact, Venus is bright enough to be seen in the broad daylight, if you know where to look. Planets look like stars, but their movement between the stars can be detected if you observe them just for a few nights.
The brightest star in the sky is the sun, as it is by far the closest. The next brightest after this is Sirus, then Canopus, Arcturus, Vega and Rigel rounding off the top six.… This is apparent magnitude - how bright they appear to us from earth. Absolute magnitude is how bright they would be from a standard distance. This would be a different list of stars, topped by a blue hyper giant called R136a1, one of the hottest and the most massive star yet found.
The actual brightest star is R136a1. It is more than 8 million times as bright as the sun and is also the most massive star. The brightest star in the nighttime sky is Sirius.…
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It is impossible to say for sure. Some stars may be very bright, but are much too far away for us to see. All the stars you see when you look outside at night are just from ou…r galaxy. We can only see a few thousand of them, and there are many more than that in our galaxy. There are about 100 billion galaxies out there. Even among the stars we can see, some may be very bright if you were closer to them, but they seem very dim to us. The sun is a star and it seems bright because we are so close to it. There are many stars out there that are a lot brighter than it is, but just seem like tiny points of light to us. So your question cannot really be answered.
That question cannot be answered. We would have to know the magnitude of every star in the universe. The universe is infinite (and expanding). It's impossible t…o answer your question.
Yes and No. A star may seem bright because it radiate a very high amount of visible light - or - because it is closer. For example, two stars may appear equally brig…ht in the sky. One may be closer than the other, but if the farther star radiates more visible light than the closer star, they could both appear to be equally bright to us. However, if the two stars radiate the same amount of visible light, the closer start will always appear brighter.
No and No. See related questions.
The sun is considered to be the brightest star in the sky.
No. Blue stars are generally the brightest.
Our sun is not the brightest star in the universe. It only appears brighter because it is much close than any other star. The brightest star as it appears in the sky is Si…rius.