Talk Title: Uncertainties in stellar evolution theory and observational tests against star clusters
Abstract: Globular Clusters are the prototype of a single stellar population (SSP) system, and should represent the easiest case for population synthesis. From SSPs more complicated systems with a mixture of populations are built up. I will point out basic uncertainties in stellar models used to model globular and other clusters, both in the canonical input physics as well as with regard to effects presently in the focus of stellar structure research. Also, a few facts regarding clusters will be discussed, which render them as being not quite as easy as one might wish. Finally, the agreement between theoretical models and cluster CMDs will be critically reviewed.
Link to talk: N/A