– Targets: 🌌 NGC 5033, 🌌 Holmberg VIII, ⭐️** Supernova SN2025mv**n
– Telescope: 🔭 ZWO Seestar S50 – EQ Mode – 20 sec
– 🌃 Bortle 6,4
– 💾 Stacked Data: 4393 x 20s frames (~24h 24m total integration)
– 👨💻 Software: 100% Siril-only via internal scripts
I just finished processing my latest project on NGC 5033, logging a total of 24 hours and 24 minutes of data. What struck me the most during the final stages was the intense, deep color profile of the galaxy itself, the Contrast between the golden core and the dust transitions came out beautifully.
A massive highlight in this dataset is the supernova SN2025mvn. clearly visible right near the center of the galaxy as bright spot (right side of the core on the first picture). Spotting an exploding star like that always adds a completely different layer of awe to the whole imaging process and makes the long integration nights totally worth it (I wanted to stop at 20 hours but forgot to add the first sessions to my StarLog logbook and instead of 19 hours (like seen on the picture) I summed up 30 hours 😄)
For this project, I wanted to change up my usual processing routine a bit and try a few new workflows inside Siril. Instead of rushing into sharpening the whole frame, I took a much gentler approach this time to keep the galaxy looking natural and soft where it needs to be.
Aside from the main target, there is also a neat bonus sitting way down in the southern part of the frame: the peculiar and active dwarf galaxy Holmberg VIII. Seeing that faint, blue star-bursting structure resolve alongside the main spiral is amazing.
by Skorpid1