What will a star moving toward the Sun show?
a shift in the spectral lines toward the blue end (as compared to the laboratory positions of these lines)
a shift in the spectral lines toward the red end (as compared to the laboratory positions of these lines)
a significant increase in its apparent brightness (magnitude)
no change that can be measured with our present-day instruments
more and more helium lines as it approaches us
I think it will show more helium...not sure
2007-04-02 14:54:53 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
It won't show more helium lines. You will get a blueshift in the spectral lines since it's moving toward you. That is all from the options you gave.
2007-04-02 15:00:22 · answer #1 · answered by darcy_t2e 3 · 0⤊ 0⤋
a shift in the spectral lines toward the red end (as compared to the laboratory positions of these lines)
But this is the last homework question I will answer for you tonight.
2007-04-02 21:58:19 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋