| http://www.w3.org/ns/prov#value | - The Earth is a part of the solar system.Spectrum ??? The array of colors (wavelengths) of light spread out by a prism or other instrument. ???Coded??? into this array of light are clues to the composition, temperature, motion and other properties of astronomical objects, making the study of spectra (plural of spectrum) a key part of what astronomers do. (More generally, a spectrum is the array of
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