Open star cluster M45 Pleiades
Photo description / processing
The open star cluster Pleiades Messier 45
This is one of the closest clusters to us (443 light years).
Despite the fact that the second name of the cluster is the Seven Sisters - in a telescope you can see much more than seven. And in reality there are about 3000.
If you look closely at the photo, reflection nebulae such as the Maia Nebula and the Merope Nebula have appeared around the hot blue stars - named after the stars whose light they reflect.
Equipment and software:
Camera Canon EOS 550 D.
Telescope Synta SkyWatcher 150/750, F/5
Mount HEQ-5 Pro
Bahtinov mask
Polar alignment camera iOptron iPolar
Baader MPCC Mark III coma corrector
Software for shooting:
Astrophotography Tool
SharpCap (polar alignment)
EQ-Mode
ASCOM
Cartes Du Ciel
Shooting from 08-22-23.2025, near the village of Stepninskoye, Chelyabinsk region
Blue zone of light pollution. Class 4 on the Bortle scale
Total 671 Light frames of 15 seconds + 20 Dark frames + 20 Bias frames
ISO 3200
Total accumulated signal Σ=2h47'45"
Software for post-processing:
DeepSkyStacker
FitsWork
FITStacker
Lightroom
StraNet2GUI
Photoshop
Topaz Denoise AI
Technical information
- Telescope/Lens
- Sky-Watcher 150/750
- Camera
- Canon EOS 550D
- Mount
- Sky-Watcher HEQ5 Pro
- Accessories
- Baader MPCC Mark III, iOptron iPolar, Bahtinov Mask
- Software
- Astro Photography Tool, DeepSkyStacker, Fitswork, FitStacker, Adobe Photoshop Lightroom, StraNet2GUI, Adobe Photoshop, Topaz DeNoise AI
- Location
- Chelyabinsk, Russia
Light pollution
Blue, Bortle 3 zone
- Date taken
Exposure
- 671 × 15″ · ISO/Gain: 3200 ·
Total exposure: 2 h 48 m









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