Historically a Windows-only tool, DeepSkyStacker has recently expanded its reach:
(Darks/Flats) you need to take before you start the download?
The installation process varies slightly depending on your operating system. The instructions below focus on the latest 64-bit versions of DSS. deep sky stacker download install
: Recommended for most users. It offers the highest reliability.
There are two reliable sources for downloading DeepSkyStacker: the official project website and the GitHub releases page. : Recommended for most users
DeepSkyStacker is a beloved free Windows application for astrophotographers that simplifies transforming many noisy, faint-exposure images into a single high‑signal, low‑noise masterpiece. Its core magic is automatic alignment and stacking of light frames (plus calibration with darks, flats, and bias frames), boosting detail in nebulae, galaxies, and star clusters while suppressing sensor noise and atmospheric artifacts.
If you are just getting started in astrophotography, you will quickly discover that taking the picture is only half the battle. To create those breathtaking, high-contrast images of nebulae and galaxies, you need to combine multiple images (stacking) to reduce noise and enhance detail. is the industry-standard, free software for this process. DeepSkyStacker is a beloved free Windows application for
Access the "Stacking Settings" to choose your alignment method (standard is usually "Average" or "Kappa-Sigma Clipping").
Minimum 800 MHz (Pentium III or equivalent); faster multi-core processors significantly speed up the stacking process.
After installing Deep Sky Stacker, you can launch the software and begin exploring its features. Here's a brief overview of the interface:
Click on > Stacking Settings from the main interface. Here are the core baseline settings to check: