how did slipher show distant stars move away form us?

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how did slipher show distant stars move away form us?

2007-07-15 12:46:26 · 2 answers · asked by yvonne k 1 in Science & Mathematics ➔ Astronomy & Space

2 answers

Hi. He was a spectronomist and knew where lines of emission and absorption should be. http://www.answers.com/slipher?cat=technology&gwp=13
Those lines are what is studied to determine the Doppler effect as answer 1 explained.

2007-07-15 13:02:31 · answer #1 · answered by Cirric 7 · 0⤊ 0⤋

the Doppler effect works with visible light as well as sound. stars that are moving away from us tend to look more reddish, an stars moving towards us tend to be more bluish. the Doppler effect compresses the wavelengths

2007-07-15 19:49:19 · answer #2 · answered by Fundamenta- list Militant Atheist 5 · 0⤊ 0⤋