Authors: 
Ejnar Hertzsprung (1873-1967) & Henry Norris Russell (1877-1957)
						
The Hertzsprung-Russell diagram, a log-log plot of luminosity as a function of temperature for stars, used to explain the changes as a star evolves. It provided an entirely new way to look at stars, and laid the groundwork for modern stellar physics and evolution, developed independently by
						
						Category: 
Statistics & Graphics