Messier 62
A 2010 study identified 245 variable stars in the cluster's field , of which 209 are RR Lyrae variables , four are Type II Cepheids , 25 are long period variables , and one is an eclipsing binary . The cluster may prove to be the galaxy's richest in terms of RR Lyrae variables . 
<triplet> long period variable <subj> variable star <obj> subclass of