Labels:text | electronics | screenshot | font | operating system | colorfulness OCR: PLOTTING STAR TYPES THE HERTZSPRUNG-RUSSELL (or H-R) diagram is a fundamental tool for SUPERGIANTS astronomers. It is used to plot the absolute magnitudes of stars against their spectral types (colors), or GIANTS MAIN-SEQUENCE STARS against their surface temperatures, +5 which determine their spectral types. Stars fall into various groups on the diagram, which indicate + 10 ABSOLUTE MAGNITUDE stages in stellar life cycles. The WHITE diagram helps astronomers to DWARFS understand the way in which stars +16 00 BO AO FC GO KC MO evolve and to establish relationships SPECTRAL TYPE (COLOR) between stellar properties. HERTZSPRUNG-RUSSELL DIAGRAM Stars can be plotted on an H-R diagram according to their characteristics. During their lives, stars move between different CASE STUDY areas on the diag ...