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Basically it has to do with the blackbody spectrum.
Hot objects emit a broad spectrum of light, not just a single color. At the point where the temperature is such that the blackbody radiation peaks in the ultraviolet the overall spectrum is such that the emitted light appears to us as largely blue.
There may well be purple stars, but from our eyes, they appear blue. Our eyes, slightly deceive us.
See the related link for a picture of how our eyes perceive colour at a given temperature, and another for a video explaining in detail this question.
Our Sun would appear a kind of peach, if we had eye's better developed to a blackbody spectrum
Purple is a combination of blue and red. The light emitted by a star is of such a nature (black body radiation curve) that there is one predominate colour and lesser component of lower frequencies. (Higher frequencies are rapidly attenuated.) It is therefore impossible to get two colour emission peaks in both the blue and red of equal intensity - consequently no purple stars.
However you could have two stars closely orbiting each other: one blue and the other a red super giant, that at a great distance would look like a purple star, or a red star with a super hot white dwarf, that would work too. Interesting to note, the star Algol might fulfill this combination.
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What do purple sea urchins eat?
The Purple Sea Urchin's diet consists of plants, animal matter, including algae, dead fish, sponges, decaying matter, mussels, barnacles, and kelp. The Purple Sea Urchin is the prey of crabs, sunflowers stars, snails, most birds, fish, sea otters, and humans. The Purple Sea Urchin is actually a delicacy in some countries.
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Purple loosetrife is introduced by Europe.
Why does your son have a purple thumb?
he likes purple popsicles
Are purple shells rare?
sometypes of shellsare rare to be found purple. for example a purple pupu shell is rare.
What is the chemical name for purple?
There isn't one. Purple is a color
Are purple sea stars poisoness?
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Any super stars favorite colors purple?
Justin Bieber!
Can stars be purple?
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What colour is Mace windu's light Sabre from stars wars?
It's purple. It is one of the colors for the jedi's (blue,green,purple.)
What kind of spectrum do your stars emit?
Red at one end, purple at the other.
What are the colers of all the stars?
blue red yellow pink purple green
Is an orange star hotter or colder than a purple star?
An orange star is a moderately cool star. There are no purple stars. An optical ilusion of viewing can occasionally make certain stars appear green, but it is an "optical illusion".
What color are blue giant stars?
usually blue, but some are purple-ish like.
What is hotter than white hot?
Blue or purple stars are hotter than the whites
How stars get hot?
well, stars are balls of gas (hydrogen) which fuses into helium. is also how how the sun produces energy but stars can reach a temp. of 20,000 if purple if it is blue probley 10,000
How Hot can stars get?
well, stars are balls of gas (hydrogen) which fuses into helium. is also how how the sun produces energy but stars can reach a temp. of 20,000 if purple if it is blue probley 10,000
