What is a spectrometer?

A spectrometer is an tool commonly used by astronomers which splits the light collected by a telescope into its colors. This allows astronomers see the details in the light from space. Astronomers know how to get a lot of special information about a space object by studying its light. By using spectrometers, we can find out the temperature of an object in space, learn which direction it is traveling, find out how fast it is going, figure out its weight and even find out what it is made of. Spectrometers help us learn all of this from light!


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