Astronomers observe a supernova remnant and a planetary nebula with a spectroscope. In terms of velocity, compare the Doppler shifts observed with each of these objects. Justify your answer. *This is all the information I was given to answer this question.

Astronomers observe a supernova remnant and a planetary nebula with a spectroscope. In terms of velocity, compare the Doppler shifts observed with each of these objects. Justify your answer. *This is all the information I was given to answer this question.

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Question

Astronomers observe a supernova remnant and a planetary nebula with a spectroscope. In terms of velocity, compare the Doppler shifts observed with each of these objects. Justify your answer.

*This is all the information I was given to answer this question.