M17

Posted: Jun 28th, 2025

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NGC

IC

HD

Technical Info

Telescope/Lens: Apertura CS150

Camera: ZWO ASI533MC Pro

Mount: ZWO AM3

Guide Scope: SVBony SV106

Guide Camera: ASI120MM

Software: NINA, PixInsight

Accessories: MEYON 1.0x CC, Gemini AF

Exposure:

20 x 60" ISO/Gain: 100 - Optolong UV/IR

40 x 180" ISO/Gain: 100 - Laida Duo-Band

Blue zoneLight Pollution:

Aktau, Kazakhstan

Jun 27th, 2025

2 h 20 m

558

16

Another shoot interrupted by the wet wind.

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Resolution: 2930x2930 px

Scale: 3700 KB

Maksim Selivanov

83

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Comments

Excellent. Now, if only the background could be darkened a bit.

28 Jun, 2025 Reply

Maksim Selivanov Replied to Oeswww

Thanks! There's a bit of background there, mostly hydrogen. I try to keep the background brightness around 800 so it doesn't look too artificial.

29 Jun, 2025 Reply

Oeswww Replied to Maksim Selivanov

Understood)

28 Aug, 2025 Reply

Narrowband really does make a difference. Last week, I shot 2 hours of LRGB data, and in the final processed image, there just isn't the same depth.

30 Aug, 2025 Reply

Was HDR used here?

30 Aug, 2025 Reply

Maksim Selivanov Replied to Oeswww

No, here it's only "slow stretching," I try not to touch the HDR unnecessarily.

31 Aug, 2025 Reply

Oeswww Replied to Maksim Selivanov

I had almost forgotten about this technique. Does it actually work?

1 Sep, 2025 Reply

Maksim Selivanov Replied to Oeswww

If you like the result, it works)

1 Sep, 2025 Reply

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