healpix for Mac

healpix is a suite of command-line tools for partitioning spherical data. Its core idea is to divide the entire sphere into layers of equal-area pixels arranged along latitude. This partitioning scheme allows data at any position on the sphere to be organized and retrieved uniformly, avoiding the problem of ordinary latitude-longitude grids becoming overly dense near the poles. It is suitable for researchers in fields such as astronomy, cosmology, and Earth science, who use it to organize all-sky observational data, build fast indexes for spherical maps, or perform multi-resolution analysis. If you have data points distributed across the entire sphere and need a regular yet efficient way to store and query them in blocks, healpix provides exactly such a foundational and practical solution.