Question

question: 15
where on the h - r diagram are the main sequence stars?
o a a
o b b
o c c
o d none of the above

Explanation:

The Hertzsprung - Russell (H - R) diagram is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral classifications or effective temperatures. Main - sequence stars are plotted along a diagonal band in the H - R diagram. In the given diagram, region C represents the main - sequence stars. Region A is likely for giants and super - giants (higher luminosity for their temperature, not on the main sequence), and region B is for white dwarfs (lower luminosity for their temperature, not on the main sequence).

Answer:

C. C