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Rigel is brighter.

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Which star is brighter Betelgeuse or Rigel?

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.


What star is brighter Betelgeuse or Rigel?

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.


Why does Rigel shine just as brightly as Betelgeuse?

Rigel appears as bright as Betelgeuse even though it is further away because Rigel is intrinsically brighter (has a higher luminosity) than Betelgeuse. Despite being further away, its higher luminosity compensates for the distance, making it appear similarly bright in the sky.


What are the colors of Rigel and Betelgeuse?

Rigel is a blue-white star, while Betelgeuse is a red supergiant star.


How can you tell that Rigel is brighter than Betelgeuse?

The simple answer is by looking at them.The technical answer is by analysing their bolometric luminosity with a bolometer.


How big is Betelgeuse compared to Rigel?

Betelgeuse is larger in size than Rigel. Betelgeuse is a red supergiant star with a diameter about 800 times that of the Sun, while Rigel is a blue supergiant star with a diameter about 70 times that of the Sun.


Which is larger Rigel or Betelgeuse?

Betelgeuse is larger than Rigel. Betelgeuse is a red supergiant star with a diameter about 1,180 times that of the Sun, while Rigel is a blue supergiant with a diameter roughly 79 times that of the Sun.


Which star is brighter Aldebaran or Betelgeuse?

Betelgeuse is brighter.


Betelgeuse and rigel are stars in which constellation?

Betelgeuse and Rigel are stars in the constellation Orion. Betelgeuse is a red supergiant and Rigel is a blue-white supergiant, and both are easily visible to the naked eye in the Orion constellation.


Is Betelgeuse hotter than Rigel?

No, Rigel is hotter than Betelgeuse. Rigel is a blue supergiant star with a surface temperature of around 12,000 Kelvin, while Betelgeuse is a red supergiant with a surface temperature of around 3,500 Kelvin.


How many times larger is Betelgeuse in terms of diameter than Rigel?

Betelgeuse is around 10 times greater in diameter than Rigel.


Why are the stars Betelgeuse and Rigel also known as alpha and beta Orionis?

It is common for astronomers to identify stars in a constellation with Greek alphabets. This is called the "Bayer designations". Bayer, a German astronomer, designated the stars in a constellation according to brightness, but this is not always the case. Here, Betelgeuse is not as bright as Rigel but it is called Alpha Orionis, rather than Beta Orionis. One reason for this is because 400 years ago, nobody could accurately determine which star was brighter, and it probably seemed that Betelgeuse was the brighter star.