Question

refer to the diagram below showing the various lumlosity classes on the h - r diagram
a star with luminosity class iii has a surface temperature of 9,000 k.
what is its absolute magnitude?
0
-3
-10
-7
+2

Explanation:

Step1: Locate the star on the H - R diagram

Find the intersection of luminosity class III and temperature 9000K on the H - R diagram.

Step2: Read the absolute magnitude

From the diagram, at the intersection point, the absolute magnitude \( M \) is approximately \( 0 \).

Answer:

0