SidereaAstrophotography, stacked and processed.

A small, native Mac app for turning raw frames of the night sky into a finished image.

Linear 32-bit pipeline

Every image is converted to linear floating point on load. Nothing is rounded or clipped until you export.

Reads FITS and XISF from astro cameras, camera RAW and TIFF. Previews are auto-stretched so faint nebulosity is visible.

Every step is kept. Undo goes back one step at a time, the original is never touched.