In preparing to image Eris, I did a dry run on M30 to investigate a niggling auto guiding problem. When I processed the image set (10x3mins) I noticed an object that moved between sub-frames. A quick image link between CCDSoft and The Sky 6 revealed this to be minor planet 98 Ianthe, at 3.9AU.
Gee, these critters seem to be popping up everywhere!