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It's because of the temperature of the star. The temperature defines the colour of the star. A red star is cooler than a blue one.
Imagine heating an iron rod. It will start off black, then red, then orange, then yellow and if you continue heating it, it will turn white. If you could heat it a lot more it would turn blue.
Wiki User
∙ 14y ago
Wiki User
∙ 16y agopeople think that red is hotter than blue but really it isn't blue is very very much hotter than red.
Wiki User
∙ 12y agobecause the gases used in a blue star are more concentrated than in a red star. they burn hotter and quicker than the red star
Wiki User
∙ 14y agoBlue is a higher frequency than red, and therefore higher energy. This energy comes from the fact that there is more energy available in the substance. In turn, this means it is hotter.
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Is a blue star hotter than a red giant?
blue stars are hotter
What is a clue to a stars temperature?
Its colour. White stars are hotter than blue stars which are hotter than yellow which are hotter than orange, which are hotter than red.
True or false Red stars are hotter than whittish- blue stars?
False. Blue giants(or hypergiants) are hotter than Red giant stars. White dwarves are also hotter but they are smaller than blue giants. (As is implied by the name.)
What is the difference between red blue and white stars?
blue and white stars are hotter than red stars (and newer).
Are blue stars cooler than red stars?
No, blue stars are hotter than red stars. In other words, red stars are cooler. Think of it as fire. The red one is hot, but the blue flame is RAGING hot.
Is the sun hotter or cooler than red and blue stars?
The sun is hotter than red stars but cooler than blue stars,
Is a blue star hotter than a red giant?
blue stars are hotter
Which is hotter red stars or whitish - blue stars?
White Dwarves and Blue giants are both hotter than Red giant stars.
What is a clue to a stars temperature?
Its colour. White stars are hotter than blue stars which are hotter than yellow which are hotter than orange, which are hotter than red.
True or false Red stars are hotter than whittish- blue stars?
False. Blue giants(or hypergiants) are hotter than Red giant stars. White dwarves are also hotter but they are smaller than blue giants. (As is implied by the name.)
What is the difference between red blue and white stars?
blue and white stars are hotter than red stars (and newer).
Are blue stars cooler than red stars?
No, blue stars are hotter than red stars. In other words, red stars are cooler. Think of it as fire. The red one is hot, but the blue flame is RAGING hot.
Is red stars cold?
No. Red stars emit less energy so they are cooler than hotter blue stars.
Are hotter stars blue and cooler stars red?
yes
Suppose you see two stars a blue star and a red star what can you conclude about the two stars?
the blue star has a hotter surface temperature than the red star. (:
Which stars are hotter red stars or blue stars?
Blue stars are the hottest, because they are newborn stars. Yellow stars are medium age stars, like our sun, and are right in the middle. Red stars are the oldest, and will explode very soon, so those are the coolest (but still pretty hot; hotter than your oven!).
Is a red star hotter than a blue star?
yes they are, in fact, white stars a hotter than blue or red star, and blue stars are varie in sizes, red stars are usually mid size or red giants or super giants. the bigger they are does not mean they are hotter!
