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| physical object > natural object > celestial body > collection of stars > star cluster > globular cluster |
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| globular cluster comparison table | |
| Subject | has definition |
|---|---|
| class I globular cluster | |
| class II globular cluster | |
| class III globular cluster | |
| class IV globular cluster | |
| class IX globular cluster | |
| class V globular cluster | |
| class VI globular cluster | |
| class VII globular cluster | |
| class VIII globular cluster | |
| class X globular cluster | |
| class XI globular cluster | |
| extragalactic globular cluster | |
| Oosterhoff Group globular cluster | Globular cluster which differs in the period of transition between Bailey type ab and type c variables, the ratio of type c to type ab stars, in the metallicity of RR Lyrae stars, and in the mean period of the ab variables. |
| unclassified globular cluster |
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