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Surprisingly perhaps, it is fairly cool for a star. Betelgeuse is a red giant, meaning it is reaching the end of its life. When a star like our sun, a moderate Main Sequence Star begins to run out of fuel, there is a reaction in the collapsing core that briefly (in the lifetime of a star..briefly can be millions of years) causes the outer layers to expand outward. The gases cool off as they move farther from the core. Red light holds the least energy, which is why the star's outer layers turn red. It is also the coolest light.
Our sun will one day become a red giant like Betelguese, and its outer layers will expand far enough to engulf Mars.
One day, Betelgeuse will loose its outer layers in a nova, and all that will be left will be a white dwarf core.
Look up the Hertsprung-Russell diagram and you'll get more exact temperatures for red giants, but red stars of any type are the coolest.
What else can I help you with?
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).
Where does the betelgeuse belong?
Rigel (Beta Orionis) is the brightest star in the constellation Orion and the sixth brightest star in the sky.It is a type B star and will have a temperature between 10,000 -> 30,000 KObservations have placed it's surface temperature at 12,130K. This equates to:21,374 degrees Fahrenheit11,857 degrees Celsius
Does Betelgeuse emit more or less infrared radiation than the sun?
It's luminosity is 90,000 - 150,000 times that of the Sun, so it's safe to assume that the total amount of infrared radiation will also be more. Since its temperature is lower than that of the Sun, the percentage of infrared radiation should also be higher.
Is Betelgeuse a yellow star?
No, Betelgeuse is a red star.
Why is Betelgeuse red?
Simply put. No it's not, Not in terms of Mass or Radii. While it's one of the largest stars in our neck of the woods(within 1000 lightyears around the sun) Before I go on let me give you some facts about Betelgeuse/Alpha Orionis . Betelgeuse is a M2I-a Supergiant/Hypergiant star. its around 600 light years away which is a recent finding as just a few years ago we thought the star was 540-560ly away. Betelgeuse Has a Solar Mass of 18 or 19 solar masses and a solar radii of 936. Now i can move on to some other stars that are much larger then Betelgeuse. 1. VY Canis Majoris- This star has a solar radii of a mind boggling 2100 solar radii that's over 2 times the size of betelguese 2. Eta Carina- This MASSIVE star tips the scales on how much mass a star can have at a whooping 150 solar masses. that's 7.8x heavier then betelgeuse Look up the Quintuplet Cluster for more larger stars then betelgeuse cause we astronomers look at that particular cluster to observe how big stars can actually get, since its towards the galactic center and we believe that the galactic center favors larger objects. Any how I hope i was some help.
What is the temperature of Betelgeuse?
Betelgeuse ("Beetlejuice") has a surface temperature of around 3,500 Kelvin. (3,200º Celsius or 5,800º Fahrenheit)
What is temperature of Betelgeuse?
Betelgeuse ("Beetlejuice") has a surface temperature of around 3,500 Kelvin. (3,200º Celsius or 5,800º Fahrenheit)
Is the Sun hotter than Betelgeuse?
Yeah, the Suns radiant pressure is more increased then Betelgeuse.
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.
Is Betelgeuse warmer than the sun?
No. While Betelgeuse is larger and brighter than the sun, it actually has a lower surface temperature.
What does the red color of Betelgeuse mean?
The red color of Betelgeuse is due to its relatively low surface temperature compared to other stars, causing it to emit more red and orange light. This cooler temperature indicates that Betelgeuse is nearing the end of its life cycle and will eventually explode as a supernova.
What are some surface features on Betelgeuse?
Betelgeuse is a red supergiant star located in the constellation of Orion. It is known for its irregular shape and variability in brightness, which is attributed to its pulsations and changes in its surface temperature and size. Betelgeuse also exhibits large convective cells on its surface that contribute to its complex and dynamic appearance.
What is hotter than the sun Vega or Betelgeuse?
Betelgeuse is hotter than Vega. Betelgeuse is a red supergiant star with a surface temperature of around 3,500 degrees Celsius, while Vega is a blue-white star with a surface temperature of around 9,600 degrees Celsius.
What is the color and temperature of Betelgeuse?
Betelgeuse is located in the Orion constellation and is a red star. Red stars are generally the coolest of stars.
How hot is Betelgeuse on its surface?
Betelgeuse has a surface temperature of approximately 3,500 degrees Celsius (6,332 degrees Fahrenheit), making it a cool red supergiant star.
What is betelgeuse is that a hot or cool?
Betelgeuse is a red supergiant star located in the constellation Orion. It is a very luminous and relatively cool star, with a surface temperature of around 3,500 Kelvin.
Is betelgeuse hotter than a white dwarf?
No, the surface temperature of Betelgeuse is colder than the temperature of a white dwarf, the white dwarf is the hot core of a dead star. Also, red stars are always colder than white stars.
