healpix ☆

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Description:
Hierarchical Equal Area isoLatitude Pixelization of a sphere

Type: Formula | Latest Version: 3.83@2 | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Other

Tags: astronomy healpix cosmology data-analysis scientific-computing

Install: brew install healpix

About:
HEALPix is a highly efficient library and toolkit for pixelization, visualization, and statistical analysis of astronomical data on a sphere. It provides a hierarchical subdivision of the sky into equal-area pixels, enabling fast spatial queries and map-making. The package is widely used in cosmology and large-scale structure studies for its performance and precise is(latitude) property.

Key Features:

Hierarchical equal-area pixelization of the sphere
Fast pixel-to-coordinate and coordinate-to-pixel transformations
Support for spherical harmonic transforms and map manipulation
Visualization tools for sky maps
Cross-platform C library with Fortran and language bindings

Use Cases:

Cosmological simulation data analysis and map-making
Large-scale structure and galaxy survey processing
CMB data analysis and power spectrum estimation
All-sky imaging and visualization in astronomy

Alternatives:

Healpy – Python wrapper for HEALPix; provides high-level interface but depends on the core HEALPix library
Pixell – Modern alternative focused on curved-sky operations; used by ACT and SPT collaborations

Version History

Detected	Version	Rev	Change	Commit
Jan 8, 2026 9:56pm	3.83	2	REVISION_ONLY	87d6c089
Nov 19, 2024 5:30pm	3.83	0	VERSION_BUMP	dbfa1317
Nov 19, 2024 5:12pm	3.83	0	VERSION_BUMP	2ba069de
Sep 13, 2024 4:25pm	3.82	1	VERSION_BUMP	3e143b30