compared to our galaxy, is object b moving toward or away from you? how do you know? (2pts)
compared to our galaxy, is object b moving toward or away from you? how do you know? (2pts)
Answer
Brief Explanations:
If the spectral lines of Object B are shifted towards the red - end (longer wavelengths) compared to our galaxy's spectral lines, it is moving away (red - shift). If shifted towards the blue - end (shorter wavelengths), it is moving towards us (blue - shift). Without seeing the actual shift in the provided image, we assume based on common knowledge of red - shift and blue - shift in astronomy. If the lines of Object B are more towards the red side than our galaxy's, it's moving away.
Answer:
If the spectral lines of Object B are red - shifted (more towards the red end compared to our galaxy's spectral lines), it is moving away. If blue - shifted (more towards the blue end), it is moving towards.