Stephan's Quintet (NGC 7317, NGC 7318A, NGC 7318B and NGC 7319)

Posted: Sep 23rd, 2026

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NGC

Technical Info

Telescope/Lens: Askar SQA 85 мм f/4.8

Camera: ZWO ASI 183 MC Pro

Mount: Ioptron HAE 29 C

Guide Scope: Askar 52 мм F4

Guide Camera: ZWO ASI 120 MM mini

Software: SharpCap 4.0, Siril

Exposure:

69 x 300" ISO/Gain: 120

Orange, Bortle 6 zone:

Petushki Vladimirskaya Oblast, Russia

Sep 4th, 2026

5 h 45 m

636

Resolution: 851x611 px

Scale: 29 KB

Ryjov Aleksey

264

A group of five galaxies in the constellation Pegasus. Four galaxies are actively interacting, while the fifth, NGC 7320, is merely projected onto the group. In a few million years, the four galaxies will merge into a single elliptical galaxy. Stephan's Quintet is one of the most studied examples of compact galaxy groups.

I tried to get the most out of it using RC-Astro scripts in Siril. Given the 85 mm aperture and 408 mm focal length, it's fair to say the photo and processing were done as an experiment.

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Comments

Timochkins

Were AI tools used during processing? The galaxies look somehow unnaturally angular.

24 Sep, 2026 Reply

Ryjov Aleksey Replied to Timochkins

Siril and RC-Astro scripts, nothing else(

24 Sep, 2026 Reply

Oleg Novoselov

I'm thrilled that with such a small scope, I was able to capture these little guys quite well.

24 Sep, 2026 Reply

Ryjov Aleksey Replied to Oleg Novoselov

Thank you Oleg! The scope is small, that's true, but the optical quality is top-notch... And the RC-Astro scripts are excellent, of course.

24 Sep, 2026 Reply

Alena Kiseleva Beautys89

For such a telescope, an excellent shot.

2 Oct, 2026 Reply

Ryjov Aleksey Replied to Alena Kiseleva Beautys89

Thank you!

2 Oct, 2026 Reply

Ryjov Aleksey Replied to Alena Kiseleva Beautys89

I've been subscribed to you for a long time, by the way.

2 Oct, 2026 Reply

Alena Kiseleva Beautys89 Replied to Ryjov Aleksey

Did you mean focal length? The SQA series is top-notch) and is this a cropped frame?)

2 Oct, 2026 Reply

Alena Kiseleva Beautys89 Replied to Ryjov Aleksey

I subscribed to you too)

2 Oct, 2026 Reply

Ryjov Aleksey Replied to Alena Kiseleva Beautys89

Yes, the SQA series delivers very high image quality, and even a short focal length allows you to pull out a lot of detail combined with image sharpness. This is a crop frame, of course.

3 Oct, 2026 Reply

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