If a yellow star is moving away from us very rapidly, what color will it appear to be?
A) greenish blue
B) purple
C) bluish purple
D) reddish orange

Question

Quizplus · Accepted Answer

If a star is moving away from us very rapidly, it will appear to be reddish orange due to the Doppler shift. As the star moves away from us, its light waves get stretched and shifted towards the red end of the spectrum, making it appear more red than yellow.

If a Yellow Star Is Moving Away from Us Very