Rob (Grampian), thanks for the link. I'm actually after an assesment of their actual size rather than their apparent one.
Robh, thanks for clearing up a point. From some articles I've come across, the three GC's mentioned had been pooled together into that 'remnent core' category. I now see that there is still uncertainty to this being so. The reasons being given to all three being remnent cores is the popullation types of the component stars. Their compositions are much more complex with heavier elements being present than that of "normal" GCs, suggesting extragalactic origins.
Holy cow! Check out the size of M54!!! Now, dare I plonk M54 in that remnent core hole too!
