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Astrophotography can be an expensive hobby and one where we constantly seek perfection from our data. While processing is a crucial step to achieving image excellence, many processing software packages come with the cost of monthly subscriptions. But that’s not the case with astrophotography freeware Siril (siril.org/download).
Siril performs many functions including image stacking and autostretching, and it interfaces with external programs such asprocessing’ suite. The latest version of Siril, 1.2.0, was released in March 2023 and is available across Linux, Windows and macOS platforms. For this article, we installed the Windows 64-bit version.
