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Why are there no green stars?
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Why are there no green stars?
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>>7836024
>Any star emitting mostly green will be putting out lots of red and blue as well, making the star look white. Changing the star's temperature will make it look orange, or yellow, or red, or blue, but you just can't get green. Our eyes simply won't see it that way. That's why there are no green stars.
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Stars give off a broad spectrum. If the peak of that spectrum is "green," then it will look white, because green is right on the middleof the visible spectrum, so it will be giving off a lot of red and blue also.
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Why are there like no green potatoes, man? How can our eyes tell that we're NOT seeing green, dude? Did you ever think about that, brother man?
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I would love to see a real picture of a blue giant.
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The sun is green, anon.
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>>7836057
>Why are there like no green potatoes, man?

There are and they are poisonous.
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Put a big LEDin the core of Luna and walla, you'll have a glowing green space body.
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I think I remember reading something that theorized that some very late stage stars, so late stage that none could possibly exist at the current time in the universe, since the universe is too young compared to how old the stars would have to be, would appear green.
But it's a matter of perspective, since how a telescope like hubble sees light is usually color-independent.
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>>7836263
Pretty sure that if you point your telescope at Rigel or Betelgeuse can't remember which one you will see it as blue.
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>>7837558
Betelguese is a red giant.
There's an absolutely huge star that's blue, it might be rigel. Don't remember though.
I think Eta Carinae might be blue, but it's not a giant.
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>>7837562
K it's rigel then.
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There are metal rich stars. A star rich in Ba or Cu would have a pale green colour. Basically there would be a black body radiation spectrum on which there would be emission and absorption lines. So it would have to be a star from the blue - yellow segment of the H-R diagram.
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The vast majority of the photons emitted from a star are due to incandescent matter producing a black body radiation curve. Stars emitting in the visible spectrum will produce a distribution of light including green but never exclusively green thus no green stars. You will always get lots of blue and red light in a star which peeks in green, enough that it will simply appear white.
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>>7838104
metal rich just means it has elements heavier than helium
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>>7840502
Correct.

The exact composition would however vary.
Thread replies: 16
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