Use the information provided below about three main-sequence
stars (A, B, and C) and Figure 16.4 to complete and explain your reasoning for the
Star A has a main-sequence life span of 5 billion years.
Star B has the same luminosity (absolute magnitude) as the
Star C has a surface temperature of 5000 K.
a. Rank the mass of these stars from greatest to least.
b. Rank the energy output of these stars from greatest to
c. Rank the main-sequence life span of these stars from
longest to shortest.