Globular Cluster Observing Program Coordinator:Bob Kerr |
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All images are in the Public Domain.
Class I – High concentration of stars towards the center
Messier 80
Class II – Dense central concentration of core stars
Messier 2
Class III – Strong inner concentration of core stars
Messier 54
Class IV – Intermediately rich concentration of core stars
Messier 15
Class V – Intermediate concentration of core stars
Messier 13
Class VI – Intermediately mild concentration of core stars
Messier 3
Class VII – Intermediately loose concentration of core stars
Messier 22
Class VIII – Rather loose concentration of core stars
Messier 14
Class IX – Loose concentration of core stars
Messier 12
Class X – Very loose concentration of core stars
Messier 68
Class XI – Almost no concentration of core stars
Messier 55
Class XII
Palomar 12