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Why does Rigel shine as brightly as Betelgeuse even though Rigel is much smaller?
It's hotter
Why does Rigel shine as bright as Betelgeuse even though Rigel is much smaller than Betelgeuse?
Rigel appears as bright as Betelgeuse because it is hotter and more luminous, even though it is smaller. The luminosity of a star depends on both its temperature and size, so a hotter, more luminous star can shine as brightly as a larger, cooler star.
Why does rigel shine as brightly as betelgeuse even though rigel is much smaller than betelgeuse?
Rigel appears as bright as Betelgeuse because it is closer to Earth than Betelgeuse, even though Rigel is smaller and less luminous. The brightness of a star is determined by both its luminosity and distance from Earth, so a smaller, closer star can appear just as bright as a larger, more distant one.
Why is Rigel hotter than Betelgeuse?
Rigel is hotter than Betelgeuse because it is a young, massive star in the early stages of its life cycle, while Betelgeuse is an older, cooler, and more evolved star. The higher temperature of Rigel is due to the intense nuclear fusion reactions happening in its core, which generate more heat and energy compared to Betelgeuse.
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.
How can you tell if Rigel or Betelgeuse is hotter?
You can tell if Rigel or Betelgeuse is hotter based on their color. Rigel appears blue-white, indicating a hotter temperature, while Betelgeuse appears orange-red, suggesting a cooler temperature. Additionally, the spectral class of Rigel (B8Ia) is hotter than Betelgeuse's spectral class (M1-2Ia).
Why does Rigel shine as brightly as Betelgeuse even though Rigel is much smaller?
It's hotter
Why does Rigel shine as bright as Betelgeuse even though Rigel is much smaller than Betelgeuse?
Rigel appears as bright as Betelgeuse because it is hotter and more luminous, even though it is smaller. The luminosity of a star depends on both its temperature and size, so a hotter, more luminous star can shine as brightly as a larger, cooler star.
Why does rigel shine as brightly as betelgeuse even though rigel is much smaller than betelgeuse?
Rigel appears as bright as Betelgeuse because it is closer to Earth than Betelgeuse, even though Rigel is smaller and less luminous. The brightness of a star is determined by both its luminosity and distance from Earth, so a smaller, closer star can appear just as bright as a larger, more distant one.
Why is Rigel hotter than Betelgeuse?
Rigel is hotter than Betelgeuse because it is a young, massive star in the early stages of its life cycle, while Betelgeuse is an older, cooler, and more evolved star. The higher temperature of Rigel is due to the intense nuclear fusion reactions happening in its core, which generate more heat and energy compared to Betelgeuse.
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.
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.
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.
Betelgeuse appears red in the sky Rigel appears very white Which one is hotter?
Rigel is much hotter. Red is the lowest temp. blue and white are the hottest
How many times larger is Betelgeuse in terms of diameter than Rigel?
Betelgeuse is approximately 1.4 times larger in terms of diameter than Rigel.
Which is brighter Rigel or Betelgeuse?
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.
What are the colors of Rigel and Betelgeuse?
Rigel is a blue-white star, while Betelgeuse is a red supergiant star.
