By: Lucas Bellandi and Maysen Atkinson

How it works!

Stars have been studied for thousands of years. A very popular method we use today to study stars is called Spectroscopy. Spectroscopy uses the light that is emitted from a star to identify various information about the star. It can tell us how old the star is, how hot it is, the mass, the gravity and most importantly what elements the star is made up of. Scientists can see the elements a star is made up from, by looking through a spectroscope and examining the light rays. Different elements emit different colors, for example Hydrogen only emits violet, blue, blue-green, and red.

The Romans and Isaac Newton

The Romans first invented prisms to see all the colors in the spectrum. Isaac Newton is considered to be the Father of spectroscopy as he applied the word spectrums to the colors. As the years went on , with advance to prisms, scientists were able to look up into the sky and identify the color spectrums of stars.