Question

properties of stars end-of-lesson test
8 ______ is the factor that is plotted on the x - axis of an h - r diagram.
temperature
relative brightness
luminosity
absolute brightness

Explanation:

In an H - R (Hertzsprung - Russell) diagram, the x - axis represents the temperature of stars (usually plotted in a decreasing order from left to right, with spectral class or temperature in Kelvin). Relative brightness, luminosity, and absolute brightness are related to the y - axis or other aspects of stellar properties in the H - R diagram.

Answer:

A. Temperature