Physics, 25.01.2020 01:31 kiannadgarnica
Light from the star betelgeuse takes 640 years to reach earth. how far away is betelgeuse in units of light-years? name any historical event that was occurring on earth at about the time the light left betelgeuse. is the distance to betelgeuse unusual compared with other stars?
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Light from the star betelgeuse takes 640 years to reach earth. how far away is betelgeuse in units o...
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