NGC 2237 (Rosette Nebula)

Stb-Astro

40548

Deep Sky

Mar 9th, 2026

486

NGC 2244NGC 2237NGC 2238NGC 2239NGC 2246

Resolution:: 6017x3980 px
File size:: 3557 KB

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Photo description / processing

First imaging session in 2026. Winter this year has had no clear weather... It was windy. Processing in Siril 1.4.2 using scripts: AutoBGE (background), SyQon [Prism (noise), Starless (star separation)], VeraLux [Alchemy (narrowband palette), HyperMetric Stretch (histogram work), Star Composer (stars+nebula)]. For the stars, the NB_2RGB script was used (to give the stars a more natural color based on frames taken with dual-band filters).

Technical information

Telescope/Lens: Sky-Watcher Quattro 200P
Camera: ToupTek ATR3 CMOS 26000 KPA
Mount: MT-120
Guide Scope: Guide Scope 60/240
Guide Camera: ZWO ASI178MC
Accessories: 2'' MPCC MEYON
Software: N.I.N.A., Siril, Adobe Photoshop

Location: Sterlibashevo, Russia

Light pollution

Yellow, Bortle 5 zone

Date taken: Feb 18th, 2026

Exposure

30 × 300″ · ISO/Gain: 100 · 2'' LAIDA 7nm Dual Band Filter · Feb 18th, 2026

Total exposure: 2 h 30 m

Comments

Robert Nik

It turned out really well :)

Mar 9th, 2026

Stb-AstroReply to Robert Nik

Thank you!

Mar 9th, 2026

oeswwwReply to Robert Nik

Honestly, it's a bit underwhelming. For a Quattro 200 and that camera, the result is pretty weak, especially with a duoband filter. If I manage to get out to Mezmay this week, I'll show you what the shot should look like. I have essentially the same setup—a Quattro (200PDS with a 0.75x reducer) and also a 2600 camera. Although, I do have one 5-minute frame with a hydrogen filter, but that was taken with an FRA500 (91mm x 350mm): https://clck.ru/3ST2dy

Mar 10th, 2026

Robert NikReply to oeswww

Why? It's quite decent. If you don't overdo it with things like blurXterminator, this is the kind of result you get.
And if you don't endlessly extract every tiny speck, as some like to do. For 2.5 hours of integration, it's pretty good.

Mar 12th, 2026