H R Diagram. Einar hertzsprung was a danish astronomer and henry norris russell was an american astronomer and they both did ground breaking work in measuring and understanding the properties of stars in the early 1900s. The most surprising thing about the h r diagram was that the stars were not randomly scattered on it but clustered in certain regions and along certain lines.
The hertzsprung russell diagram is generally depicted as a scatter plot graph where each individual star is represented by a single point along the graph. The hertzsprung russell diagram the various stages of stellar evolution. Calculating a stars radius using stefans law stefans law says that for any radiating object.
The most surprising thing about the h r diagram was that the stars were not randomly scattered on it but clustered in certain regions and along certain lines.
The most surprising thing about the h r diagram was that the stars were not randomly scattered on it but clustered in certain regions and along certain lines. This is the hertzsprung russell diagram aka. This diagram is called the hertzsprung russell h r diagram. Such a plot was first made by two astronomers working independently.