Hi all
Just wondering about the colours we see in Globular Clusters, particularly in photographs such as these
two excellent shots of Omega Centauri taken by Scott Alder.
If Globular Clusters contain all older stars and there's no recent starbirth regions, then I'm wondering why we only see a scattering of the yellow/orange/red stars? I would've expected to see the majority of the cluster as orangey in colour due to the older redder stars.
Most images I see of globs are mostly blue in colour - but it doesn't make sense as the globular clusters don't contain the young, hot blue O/B type stars.
Is it simply a colour balance issue with how the images are taken and processed?