In the H- R diagram, what are the two most important types of data plotted?
A) absolute and apparent magnitudes
B) spectral classes and absolute magnitudes
C) apparent magnitudes and temperatures
D) luminosities and masses
E) sizes and temperatures

Question

Quizplus · Accepted Answer

The Hertzsprung-Russell (H-R) diagram plots spectral classes (or temperatures) against absolute magnitudes (or luminosities), allowing astronomers to study the relationships and evolution of stars.

In the H- R Diagram, What Are the Two Most