The Stardinates are a novel interactive Information Visualization (InfoVis) technique which aims at visualizing highly structured data. They represent some Gestalt principles very well, especially the principles of Closure and ’Pr¨agnanz’. As a consequence, Stardinates form very disd memorable patterns which make abstraction and aggregation much easier. We give a formal description of the Stardinates as a basis for implementation. Furthermore, we show an application by visualizing psychotherapeutic data derived from a clinical study on anorectic girls.