asterism indexing

Roweis, Lang, and I argued loudly for quite a while today about what quads (sets of four stars) we should index in the hypothesis generator for our blind astrometric calibration system. The strange thing about our argument is that we all agreed that we should index all quads (not just quads in some restricted subspace of configurations), but we disagreed mightily on why we should. Mierle seemed to be of the opinion that this was all pretty academic, but then we reminded him that we are all academics.