Naztronomy

Monochrome Mosaic Stacking Made Easy with this New Siril Script

By Naztronomy • Posted on 7/21/2026

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Ever wanted to stack monochrome images easily? What about monochrome mosaics? Well look no further than this script. This is the Naztronomy Mono PP script in Siril and it does wonders. Check out the video for more info.

This is the final result as seen in the thumbnail, although I use sessions of M8 and M20 for the actual demo:

This is the Mandel-Wilson 9 nebula, which I'm calling the Cosmic Snake. Amazing nebula seen from the Southern Hemisphere. The Rig had a lot of servere light leaks but I made the best of it. I highly recommend looking at it on Astrobin because you can zoom in to see the tiny galaxies: https://app.astrobin.com/i/qbbxwm The jagged mosaic panels were also a mistake on my part, I forgot to reset the angles when creating the mosaic sequence in NINA but I think it looks kinda cool, it kinda goes with the body of the snake.
Telescope: Sky-Watcher Esprit 100ED
Camera: QHY268M
Mount: Sky-Watcher EQ8-R Pro
Filters: ZWO LRGB
Exposure: L: 122x180s, R: 99x180s, G: 113x180s, B: 100x180s
Integration: 22 hours 42 minutes
Guiding: OAG
Software: Siril, NINA, PixInsight, PHD2
Location: Bortle 1, Kagga Kamma Remote Observatory, South Africa
Date: April-May 2026

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