PixInsight - A powerful deep sky stacking application for astrophotography.
UFOCapture - UFOCapture is motion capture software that starts recording on a hard disk drive of a computer from a few seconds before the action recognized to a few seconds after the action finished.
Siril - Siril is an astronomical image processing tool, able to convert, pre-process images, help aligning...
Meteotux Pi (Free Edition) - Software to record continuous high resolution images of night time fireballs, aeroplanes, satellite flashes etc.
RegiStax - Photography, Astronomy, Image, and Astrophotography
Wireless Allsky Camera Project - The wireless Allsky Camera Project is an initiative by Thomas Jacquin for running an all sky camera on Raspberry Pi.