Objectives Learn about and do a little spectral classification.
Calculate the distance to the Pleiades using spectroscopic parallax. There are several different concepts which work together in this lab to finally give us the answer we are looking for, the distance to the Pleiades . The first step is to learn how to do a rough classification of stellar spectra. This lets you determine the spectral type of a star from its spectrum. The second step is to find the apparent magnitude of this star.