Why are observations of star clusters so important to the theory of stellar evolution?

Why are observations of star clusters so important to the theory of stellar evolution?Why are observations of star clusters so important to the theory of stellar evolution?it does not at all, i have studied astronomy for some time now, and in no way do star clusters prove how stars galaxies or nebula's formed.Why are observations of star clusters so important to the theory of stellar evolution?Because we know all the stars are at about the same distance from Earth and were all formed at about the same time.

Knowing they are all the same distance means if one appears to be 100 times dimmer than another, then it really is 100 times dimmer not the same brightness seen 10 times farther away.

Knowing they are all the same age means any difference in brightness or color or composition between them is due to something other than a difference in age.Why are observations of star clusters so important to the theory of stellar evolution?Because star clusters derive from the same dust cloud, meaning that all stars in that particular cluster came about around the same time. By observing this, we have learned that more massive stars exhaust their hydrogen faster, so older clusters will have more Red Giants. Another attribute of the star cluster is that they tend to evolve from an open cluster full of young, blue stars into Globular clusters full of Red Giants and x-ray sources. Since the introduction of black hole and neutron star theories, we've found that the majority of attributes (Such as regular x-ray emission) can be found in older star clusters, which helps us support the validity of the claim. There are many things that the observation of star clusters can do. I hope I helped you with your homework.