M101 The Pinwheel Galaxy

Andrey Gapulenko

44633

Deep Sky

Apr 10th, 2026

604

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

Resolution:: 2600x2600 px
File size:: 2049 KB

Show astrometry on hover

Photo description / processing

Six nights in March. P.S. I'll keep trying to pull out the hydrogen. I'm learning to "clean" the data further.

Technical information

Telescope/Lens: Celestrone 8N
Camera: ZWO ASI 533MC
Mount: ZWO AM5N
Guide Scope: SVBONY 60
Guide Camera: ZWO ASI462MC
Accessories: Optolong L-pro 2"Optolong L-extreme 2"
Software: Pixlnsight, PS

Location: Moscow, Россия

Light pollution

White, Bortle 8/9 zone

Date taken: Mar 14th, 2026

Exposure

993 × 120″ · ISO/Gain: 101 · Optolong L-pro 2"
176 × 120″ · ISO/Gain: 101 · Optolong L-extreme 2"

Total exposure: 38 h 58 m

Comments

KonFuz

Too much sharpness applied and stretched with a lot of light channel.

Apr 11th, 2026

Andrey GapulenkoReply to KonFuz

Thank you for your opinion! Regarding sharpness—in my view, that’s a matter of taste, and there’s no arguing about taste. About the light—is there somewhere I can read more? I don’t understand what you’re referring to.

Apr 11th, 2026

KonFuzReply to Andrey Gapulenko

Colors are limited due to the Luminance channel—it's heavily stretched, likely processed in Siril.

Apr 11th, 2026

oeswww

Interesting to see the source code.

Apr 11th, 2026

Andrey GapulenkoReply to oeswww

Master can send. Need it? Write on WhatsApp +79161871792

Apr 11th, 2026

Iren

Very impressive! Especially given the level of light pollution! :-)

Apr 11th, 2026

Andrey GapulenkoReply to Iren

Thank you. There is certainly more work to be done, and I must study, study, and study again)))

Apr 11th, 2026

Anatoliy

A mesmerizing photo. For me, as a beginner in this genre, it's a real benchmark.

Apr 12th, 2026

Andrey GapulenkoReply to Anatoliy

Thank you for your comment. Patience and hard work. My first works were far worse than this; the key is persistence and patience. Clear skies and success to you.

Apr 12th, 2026