is the gold standard for free, open-source software designed specifically to register and stack your deep-sky images. Here is your step-by-step guide to getting it onto your machine and ready for the night sky. 1. Where to Download DeepSkyStacker
Once the progress bar hits 100%, you’re ready to launch. 3. Post-Installation: Initial Setup
It detects stars automatically and rotates/shifts your images to match perfectly. 5. Troubleshooting Common Issues
DeepSkyStacker: Download and Installation Guide for Astrophotography
It provides professional-level alignment without the price tag of PixInsight.