deepskystacker/DSS

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1135 stars · 109 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

DeepSkyStacker is a freeware application for registering and stacking deep-sky astrophotography images to improve signal-to-noise ratio. Originally created in 2006 and open-sourced in 2018, it is built with C++ and Qt and runs on Windows, Linux, and macOS.

Use cases

• stack astrophotography subs to reduce noise
• calibrate dark flat and bias frames for deep sky images
• align and register telescope images
• improve signal to noise ratio of night sky photos
• process RAW frames from astronomy camera
• combine multiple exposures of nebulae and galaxies

When to choose

• you shoot deep-sky astrophotography and need calibration, registration, and stacking in one free tool
• you want a mature, community-maintained stacking application with cross-platform releases

When to avoid

• you need planetary or solar system image stacking (specialized tools like AutoStakkert fit better)
• you want a fully automated end-to-end astrophotography processing pipeline including stretching and editing
• you need a library or CLI to embed stacking into your own software

Facets

application · maturity active

image-processing gui astronomy image-processing photography windows cpp cross-platform astrophotography image-stacking deep-sky qt freeware linux macos

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markdown · JSON · MCP: product_card(name="deepskystacker/DSS")