Asked by Anonymous
how can I tell which star is moving faster? 191nm or 192.5 just by looking at them?
I think 191nm correct if I am wrong because its wavelength is shorter thus faster!
I think 191nm correct if I am wrong because its wavelength is shorter thus faster!
Answers
Answered by
drwls
What is being measured? Those numbers are too large to be doppler wavelength shifts of stars. Besides, dopper shifts measure speed in one direction only (the line of sight).
Stars do not have single wavelengths. That may have a number of shifted spectral lines (emission or absorption).
Stars do not have single wavelengths. That may have a number of shifted spectral lines (emission or absorption).
Answered by
Stacie
What’s the number for star 102.5 buffalo ny
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