Gnuastro

Gnuastro (GNU Astronomy) is a collection of free, open-source software tools designed for astronomers to analyze and process complex astronomical data. It provides powerful programs for tasks such as measuring stars in images, analyzing galaxy shapes, and creating detailed maps of the sky. Built on the GNU/Linux platform, Gnuastro emphasizes precision, flexibility, and user control while being accessible to those with some technical experience. By offering reliable, community-supported tools, Gnuastro helps researchers efficiently turn raw telescope data into meaningful scientific insights.