A guide to properly identifying the ellements found in stars
Spectroscopy; what even is it?
Spectroscopy is the study of how matter and electromagnetic radiation react. What that means is that every atom is different from the last. When an atom is energized, each atom emits a different wavelength of light due to the fact that all elements are unique. Each atom's spectrum is a sort of fingerprint for the element because every atom in an element has the same spectrum.
What do these spectrums look like and why do they look like that?
Hydrogens emision and absorption lines, lined up.