M 101 Pinwheel Galaxy

48521

Jun 10th, 2026

262

NGC 5457NGC 5462NGC 5471NGC 5473NGC 5474NGC 5475NGC 5477NGC 5484NGC 5485NGC 5461NGC 5447NGC 5455NGC 5449NGC 5450NGC 5453NGC 5458NGC 5368NGC 5422NGC 5443NGC 5451NGC 5486

Resolution:: 1573x1080 px
File size:: 400 KB

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Photo description / processing

The Pinwheel Galaxy M 101.

The result is certainly not the best; after all, there was too little integration time for such a faint object, and on top of that, without calibration frames, DSS introduced a lot of noise and banding, so I had to work on it.

I don't think I'll return to it.

Technical information

Telescope/Lens: Canon EF-S 55-250mm
Camera: Canon 1100Da
Mount: Штатив
Guide Scope: ручное ведение
Accessories: ДП RC-60E3
Software: DSS, Siril, StarNet++ GUI, Adobe Lightroom, Adobe Photoshop.

Location: с. Рамено, Сызранский р-н, Самарская обл., Россия

Light pollution

Yellow, Bortle 5 zone

Date taken: Jun 10th, 2026

Exposure

971 × 2.5″ · ISO/Gain: 3200 · f5.0, 135mm

Total exposure: 40 m

Comments

megapups

Well, my respects. You managed to bring out the spiral arms quite well for this scale. But I think you won't be able to reveal much more without higher magnification and longer exposure per frame. Still, an excellent result for your conditions.

Jun 10th, 2026

megapups

America also turned out quite well, by the way — I was able to bring out the Alpha and oxygen. But I understand that this is already an issue with the stack itself, since there’s that strange band on the right. Still, the result is good.

Jun 10th, 2026

dmitryspn63Reply to megapups

Thank you for the feedback. I agree about M101 — it needs more scale. And you're right about America regarding the band. Actually, I think I'll return to it to gather more data for a crop of the Wall and the Pelican.

Jun 10th, 2026

megapupsReply to dmitryspn63

Not a bad idea.
Eh, I wish I had at least clear skies — it's been cloudy for a month now, and I had so many plans to shoot.

Jun 10th, 2026

dmitryspn63Reply to megapups

I understand, I’ve had long rains myself, and now there’s only a month left for all the ideas ( so I’m thinking about what other objects to shoot, but I have no ideas.. I’m considering M16 for now, and I’m also planning a false SHO with it :)

Jun 10th, 2026

megapupsReply to dmitryspn63

I think it's a good idea.
Maybe when I have the means, I'll do something like that too.

Jun 10th, 2026

dmitryspn63Reply to megapups

Looking forward to your new work) Clear skies to you

Jun 10th, 2026

megapupsReply to dmitryspn63

Thank you, and you too.

Jun 10th, 2026