If you're shooting with a SeeStar S50 and want to take your subs into Siril or PixInsight, beta.4 of SSLM just made that a lot easier.

Export to Stacking is the headline feature — one button on your object page, and SSLM pulls all your .fit light frames, organises them by session date and capture parameters, and drops them into a folder structure that Siril and PixInsight load directly. Multi-night sessions handled automatically. Both EQ and Alt/Az sub-frame folders merged and deduplicated. Nothing in your original library is ever touched.

The rest of the app manages your SeeStar library locally — browse objects, track integration times, merge library copies, clean up preview junk, look up cross-catalog names via SIMBAD. Fully offline, runs in your browser at localhost.

Also new in this release: a live thumbnail preview of your latest image right in the object header, so browsing your collection actually looks like your collection.

📥 Free Windows installer (no Node.js needed): https://github.com/AstroNoob-Tools/SSLM/releases/tag/v1.0.0-beta.4

🔍 VirusTotal (75/76 clean — 1 heuristic false positive on a Node.js-bundled exe): https://www.virustotal.com/gui/file/2dab40b285b0de647259a69dd31b67b91dafc72af5aae9434f8d4c88d79e7d14

Main Object Screen

Export Screen

Exports Results in PixInsight (Sitil will do same)

Happy stacking! ✨

🔭 Free tool for SeeStar users — SSLM beta.4 "The Stacker's Release"