M101 (Pinwheel Galaxy)

Zvezdohota

19231

Deep Sky

Aug 28th, 2022

2020

NGC 5447NGC 5449NGC 5450NGC 5453NGC 5458NGC 5451NGC 5455NGC 5457NGC 5461NGC 5462NGC 5471NGC 5477

Resolution:: 2035x2040 px
File size:: 705 KB

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Photo description / processing

The shooting process lasted from June onward, taken slowly between other targets. There were also days when I photographed under a full Moon, but those frames were not included in the final stack. So, here is the result from the perspective of my still modest experience in shooting and processing.)) Thank you for your attention!

Technical information

Telescope/Lens: Sky-Watcher 150/750PDS
Camera: ZWO ASI533MC
Mount: Sky-Watcher EQ5 (OnStep)
Guide Scope: SVBONY 60/240
Guide Camera: ZWO ASI462MC
Accessories: Sharpstar 0.95x Coma Corrector, Optolong L-Pro Filter
Software: DeepSkyStacker, FitStacker, Fitswork, Adobe Photoshop

Location: Туймазы, Россия, Башкортостан

Light pollution

Green, Bortle 4 zone

Date taken: Aug 27th, 2022

Exposure

264 × 300″ · ISO/Gain: 100 · Aug 27th, 2022

Total exposure: 22 h 0 m

Comments

hiparon

The accumulation is quite substantial, but stacking more than 150–200 frames doesn't make much sense. At least, I don't notice any significant improvement in quality between 150 and 300 frames in total.

Aug 28th, 2022

ZvezdohotaReply to hiparon

Just out of curiosity, I gave it a try. I have about 30 hours of integration on the DsAstro website, so I wanted to see what would come out of it. I also have another 10 hours of data on top of that, but taken during a full moon. Recently, I learned how to stack in FitStacker, so I’ll try stacking all the sessions in it. It seems FS is smarter than DSS, so in theory it should bring out more detail… Probably.

Aug 29th, 2022

ZvezdohotaReply to hiparon

Thank you for the tip.)

Aug 29th, 2022