Svenesis Siril Scripts

Siril is a free, open-source software application for astronomical image processing – developed by the community and supported by the Free Software Foundation Europe project. It is specifically designed for processing deep-sky images: from stacking (combining) individual raw frames to calibration with flat, dark, and bias frames, through to colour adjustment, noise reduction, and final image optimisation. Siril supports a wide range of camera and telescope setups and runs on Windows, macOS, and Linux. Thanks to its scripting capabilities, complex processing workflows can be automated – and that is exactly where my Python scripts come in.

I have created several Python tools and scripts for Siril. All Python tools are open source (GPL-3.0) and available on GitHub.

🔭 I wrote these scripts purely for fun and out of my passion for astronomy – in Python, free to use, open source, and available to everyone.

If you find them useful and would like to support my work, a coffee is always welcome:

💻 GitHub Repository

Requirements

Siril 1.4.0+ with Python support enabled
Python dependencies: numpy, PyQt6 (auto-installed on first run)
Additional dependencies per script (matplotlib, scipy, astropy, Pillow)

Installation

The recommended approach is to keep your scripts in a dedicated folder of your own choice and register it in Siril:

Create a folder anywhere you like (e.g. ~/Svenesis-Scripts/ on macOS / Linux, or C:\Users\<name>\Svenesis-Scripts\ on Windows).
Copy the script file(s) into that folder.
In Siril, open Preferences → Scripts and add your folder under Script Storage Directories.
Restart Siril. Scripts appear under Processing → Scripts.

Alternatively, copy scripts directly into the default Siril scripts directory (no Preferences change needed):

macOS: ~/Library/Application Support/org.siril.Siril/siril/scripts/
Linux: ~/.local/share/siril/scripts/
Windows: %APPDATA%\Siril\scripts\

Annotate Image

Renders catalog annotations onto plate-solved images via live online queries (VizieR, SIMBAD). 12 color-coded object types, coordinate grids, compass rose, and legend. Export as PNG/TIFF/JPEG.

Version 1.1.0 →