# Globular Cluster diameter

I am doing a homework on globular clusters and could not find trustworthy data on the average diameter of a globular cluster. Most clusters I included had a diameter of 120-150 ly. But is that the average diameter of such globular clusters?

• You probably want to look for the 'half light radius' of clusters. There is not THE diameter of a cluster. There is only a cluster size distribution. – AtmosphericPrisonEscape Jan 23 '18 at 23:32
• @adriankroeger I edited my answer, maybe it helps more now if you're still interested. – jmh Jun 19 '18 at 17:58