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Is the light from Andromeda truly blue shifted?
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[QUOTE="Ibix, post: 6870247, member: 365269"] Oh, absolutely. The number that comes out of the spectrometer is unavoidable. You can break it down as a "cosmological redshift" and a "peculiar velocity red/blue shift" if you want (you can do that for your toes if you want, even if it makes no real sense to do so) and say some object is less/more redshifted than it "should" be, but the number is what it is and in this case it's blue shifted. [/QUOTE]
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Is the light from Andromeda truly blue shifted?
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