Quote:
Originally Posted by Atmos
You've got it right there. All globular clusters are red, some are redder than others though. The younger ones (9-7 Gyrs) have sun like stars but they only are not as common as the 10-13 Gyrs that make up the majority of the globular clusters surrounding the Milky Way.
Most of the globular clusters have a upper mass of 0.9 solar masses, a GC like Omega Cent, being one of the older ones, is around 0.8 solar masses. This means that without interstellar extinction it should still be reddish and not the white average neutral that it is generally shown as.
The reason it is generally shown as being white is because 0.8 solar masses becomes the average white because that is the average. Marc's was nicely resolved and perfectly colour balanced, just not scientifically  |
What does Gyrs stand for?
Greg