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The color of a star comes from its temperature. The coolest stars appear red, while the hottest stars are blue. And for a star, the only thing that defines the temperature of a star is its mass. Blue stars are stars that have at least 3 times the mass of the Sun and up. Whether a star has 10 times the mass of the Sun or 150 solar masses, it's going to appear blue to our eyes.
An example of a blue star is the familiar Rigel, the brightest star in the constellation Orion and the 6th brightest star in the sky. Astronomers calculate that Rigel is approximately 700 and 900 light-years away, and yet it appears almost as bright as a star like Sirius which is only 8.3 light-years away. The temperature of Rigel is approximately 11,000 Kelvin; it's this high temperature that accounts for Rigel's color. Rigel puts out about 40,000 times the energy of the Sun.
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∙ 13y ago
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∙ 13y agoHotter stars tend to shift towards the blue end of the spectrum depending on temperature.
Wiki User
∙ 12y agoBlue is the hottest color for a star. The coolest star color is red.
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Wiki User
∙ 10y agoThe hottest stars are the ones called "blue-white".
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∙ 13y agoThe hottest stars in the Universe are generally bright white. These surfaces can be greater than 360,000 degrees Fahrenheit.
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∙ 12y agoThe hottest stars are blue.
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How do scientist use the electromagnet spectrum to determine the temperature of a star?
Anything with heat emits electromagnetic radiation, even if it is only in the infrared (IR) wavelengths. As matter gets hotter, it tends to change color. For example, if you've ever seen glowing metal at a steel mill or in a blacksmith shop (like on a movie) you notice hot metal glows red, hotter metal glows yellow, and even hotter metal glows white. If you apply this concept to stars, you can start to see that by measuring the color, you are also measuring the temperature - how? because a star at a certain temperature glows a certain color. Reds are the "cooler" stars (still very hot) and blues are the hottest stars - at least when we are talking visible spectrum.
What colors are binary stars?
Binary stars can be any color that stars can be. There's no need for the two stars in a binary to be the same color.
Why do stars with smaller masses burn longer than stars with larger masses?
Stars with larger masses have stronger gravity; this results in more pressure; which in turn makes the star hotter. As a result of the higher temperature, they will shine brighter, and burn their fuel much faster.
What is the relationship between a flames color and its temperature?
The hotter the temperature the darker the colour and the colder the temperature the brighter/more blue the colour so if it is going to be hot some where when you look on a weather radar then it will be darker in that are and if it is colder it will be brighter/more blue.
Who is hotter ichigo or toshiro?
I'm not sure who is hotter but in a fight my money is on Ichigo
Smaller stars tend to be?
Hotter.
What color is the second brightest star?
a hard question to answer, but hotter stars tend to bluish, while less hot stars are a dull red, while stars in the middle tend to be more white, so the most accurate answer would be white.
What are the mostheat of color in stars?
The hottest stars still undergoing fusion tend to be blue in colour. These stars rarely get above 50,000 K. Even hotter stars are white dwarfs. They appear white with maybe a blueish tone. They can be as hot as 250,000K.
How did the sun get its color?
The sun's color results from the temperature of its outer layer, which emits light in the yellow part of the visible spectrum. Hotter stars tend to emit more light in the blue part of the spectrum while cooler stars are more reddish.
Why are cooler stars red and hotter stars blue?
It may seem counter intuitive, but temperature defines the color of an object and the hotter an object is, the more its color will tend towards the left side of the color spectrum. As someone else said before on this site, thinking about heating a metal rod puts things in perspective. As you heat the rod, it glows red and than bluer in color as it heats up. Also, think about the hottest area of a flame--the flame is hotter at the point where it is blue in color rather than red.
How are temperature and color in stars linked?
The hotter they are, the bluer they are, the cooler they are, the redder they are.
What color stars are the hottest and the coldest?
The hottest stars are blue and the coldest stars are red because blue is the color made by hotter burning things and red is the colest burning color.
What color are the hottest and the coldest stars?
The hottest stars are blue and the coldest stars are red because blue is the color made by hotter burning things and red is the colest burning color.
Are planets or stars hotter?
stars are hotter
Are all bright stars the same temperature?
no, stars temperature are diffrent according to their color. for instance, blue white stars are hotter than red 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.
What color are stars when they are really hot compared to their color when they are not as hot?
The hottest stars are blue or blue-white, the coldest stars are red. In between, from colder to hotter are orange and yellow and maybe green. A white dwarf star is even hotter than a blue-white star, but it is dead and no longer undergoing fusion.
