Lily & Missy's Stellar Guide
Spectroscopes are a very important tool for astronomers. Spectrums are finger prints for elements. It helps them understand stars and what makes up the stars. It tells us the temperature, chemical composition, mass, density, and many more things. Scientists can tell what elements are in stars by looking at the spectrum and noticing similarities between certain stars and spectrums. You use a spectroscope by looking into the light of the gas.