NGC7293

Maksim Selivanov

1021377

Deep Sky

Sep 25th, 2025

1237

NGC 7293

Resolution:: 3820x2124 px
File size:: 4177 KB

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Photo description / processing

An exceptionally harmful and low object

Technical information

Telescope/Lens: Apertura CS150
Camera: QHY miniCAM8M
Mount: ZWO AM3
Guide Scope: SVBony SV106
Guide Camera: ASI120MM
Accessories: MEYON 1.0x CCGemini AF
Software: NINA, PixInsight

Location: Aktau, Kazakhstan

Light pollution

Blue, Bortle 3 zone

Date taken: Sep 23rd, 2025

Exposure

10 × 60″ · ISO/Gain: 9 · R
10 × 60″ · ISO/Gain: 9 · G
10 × 60″ · ISO/Gain: 9 · B
20 × 180″ · ISO/Gain: 9 · S
20 × 180″ · ISO/Gain: 9 · H
20 × 180″ · ISO/Gain: 9 · O

Total exposure: 3 h 30 m

Comments

Ryjov Aleksey

This is an interesting object, even a very interesting one.
In my experience, it is best photographed in Ha and Oiii.
The final image is R-Ha G-Oiii B-Oiii.

Sep 25th, 2025

Maksim SelivanovReply to Ryjov Aleksey

Yes, it could have been done without SII, although it's definitely present there. Since switching to monochrome, I've been adding this SII wherever possible.

Sep 25th, 2025

oeswwwReply to Maksim Selivanov

There's very little sulfur, so it's pointless to shoot it; it's better to accumulate H and O to reduce noise.

Sep 25th, 2025

oeswww

Don't you want to join our Snail lovers' regiment? life_is_good is my VK account and miroshn11 is another person's. We'll create a group chat. Let's try to combine our results to get more.

Sep 25th, 2025

Maksim SelivanovReply to oeswww

No, I definitely don't consider myself a planetary imager, and I'm not on VK either. If you're interested, I can share the stacks for you to dig into. But the material is so-so—poor seeing, and I finished shooting when it was only about 15 degrees above the horizon.

Sep 25th, 2025

oeswwwReply to Maksim Selivanov

telega oeswww

Sep 25th, 2025