DeepSkyHosting

M 101 galaxy "Pinwheel"

Category:Deep Sky
Published:
499
M 101 galaxy "Pinwheel"NGC 5457NGC 5447NGC 5471NGC 5462NGC 5461NGC 5455NGC 5451NGC 5458NGC 5453NGC 5450NGC 5449NGC 5477
Resolution:
5720x3512 px
File size:
3494 KB

Photo description / processing

First light with the new tube, mounted it as a second scope next to the 300mm refractor. Both tubes now have 585 cameras—mono on the 300mm, color on this one. The main scope captured this same object in close-up, with dithering and meridian flips, while this one just ran a sequence. Later, I had to discard frames with dithering and flips, leaving 149 out of 180, but it was still worth it—the light gathering is fantastic. Stacked with drizzle -2. Tomorrow I'll process and post the version from the 300mm, and then a combined image from both tubes.

Technical information

Telescope/Lens
SharpStar 13028HNT
Camera
ZWO ASI585MC
Mount
МТ-120
Guide Scope
ED kenko 60 -400mm
Guide Camera
T7m
Software
NINA, Pixlnsight, ФШ
Location
Екатеринбург, район озера Глухое., Россия

Light pollution

Orange, Bortle 6 zone

Date taken

Exposure

  • 149 × 120″ · ISO/Gain: 200 · UV/IR

Total exposure: 4 h 58 m

Photo versions

M 101 galaxy "Pinwheel"
Updated
M 101 galaxy "Pinwheel"

Apr 22nd, 2026

12 h 3 m

The result of combining data from two telescopes, captured in a single night on the same mount, except for the hydrogen data, which was taken earlier on 04/03.

M 101 galaxy "Pinwheel"
Current photo
M 101 galaxy "Pinwheel"

Apr 13th, 2026

4 h 58 m

First light with the new tube, mounted it as a second scope next to the 300mm refractor. Both tubes now have 585 cameras—mono on the 300mm, color on this one. The main scope captured this same object in close-up, with dithering and meridian flips, while this one just ran a sequence. Later, I had to discard frames with dithering and flips, leaving 149 out of 180, but it was still worth it—the light gathering is fantastic. Stacked with drizzle -2. Tomorrow I'll process and post the version from the 300mm, and then a combined image from both tubes.

Show changes
Previous version
Current version

Comments

poiskovik_RZN
An interesting combination, but doesn't it feel like the ASKAR data might blur the details captured with the large aperture? I've actually been thinking about a similar experiment, but with simpler equipment.
Reply

Sign up or sign in to leave a comment.

More photos by Oleg Novoselov