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bugbug27
bugbug27 bugbug27
  • 21-01-2017
  • Physics
Answered

If a star is 13.7 light years away from earth, how can we tell which elements it is made of?

Verified Answer :

taskmasters
taskmasters taskmasters
  • 31-01-2017

Light year is a unit of measure of time that makes use of the speed of light and distance between objects to determine the number of years it will take for the light to travel. We can determine what element the object is made up of by the wavelength of the color.

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