Page History

...

1. Indexing data based on a spatial tesselation using Hierarchical Triangular Mesh (new) vs (old) indexing by Ra, Dec
2. Comparing performance of Oracle (new) vs MySql

HTM Indexing

Gorey Details:  http://skyserver.org/htm/HtmPrimer/tut_htm.html

We've settled on a degree of 6 which gives 2