Debian Astro

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Random #Debian Astro package of the week is libhealpix-cxx-dev. HEALPix is an acronym for Hierarchical Equal Area isoLatitude Pixelization of a sphere. As suggested in the name, this pixelization produces a subdivision of a spherical surface in which each pixel covers the same surface area as every other pixel. It is commonly used to store all-sky astronomical images, most famously maps of the cosmic microwave background.
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Dec 9, 2025 at 7:22amWeb
Show threadDebian AstroDec 9, 2025

This package provides the static library and headers for the C++ language implementation of HEALPix. The C++ library provides input/output, basic spatial operations such as conversion between spherical coordinates and HEALPix pixels, and also sophisticated spatial operations such as querying cones or polygons, as well as upsampling/downsampling, smoothing, and fast spherical harmonic transforms.

http://healpix.sourceforge.net
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HEALPix - Features

Hierarchical Equal Area Iso Latitude pixelation of the sphere (HEALPix); Data Analysis, Simulations and Visualization on the Sphere