M101 in Ursa Major

 Posted: Apr 13th, 2026
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: Sky-Watcher 150/750 pds
Camera: ZWO ASI533MC Pro
Mount: JUWEI 14
Guide Scope: Svbony 60mm
Guide Camera: ASI 120mm
Software: DSS, Siril, Pixinsight
Exposure:
37 x 300" ISO/Gain: 100 - UV/Ir-cut
50 x 180" ISO/Gain: 100 - UV/Ir-cut
Blue, Bortle 3 zone:
 Smolenskaya Oblast, Russia
 Apr 17th, 2025
5 h 35 m
14
Resolution: 2701x2824 px
Scale: 13804 KB
Iren
104
I wanted to add another 5 hours of exposure, but I remembered that the telescope had been modified, and the diffraction spikes on the stars wouldn’t match. So I reprocessed the old data instead.
Current photo Updated
  Today, at 16:54
  5 h 35 m
I wanted to add another 5 hours of exposure, but I remembered that the telescope had been modified, and the diffraction spikes on the stars wouldn’t match. So I…
  19 Apr, 2025
  5 h 35 m
I've accumulated a couple more hours, adjusted the stars and removed the noise.
  18 Apr, 2025
  3 h 5 m
Show changes
Add comment

Comments

There are no comments on this picture yet

Comments are available only to registered users. Register or log in to leave a comment.