M101 Pinwheel Galaxy
Photo description / processing
M101, the Pinwheel Galaxy.
A spiral galaxy in the constellation Ursa Major.
It is about 70% larger in size than the Milky Way.
Discovered on March 27, 1781.
Distance: 27 million light-years.
Diameter: 170,000 light-years.
Apparent dimensions: 27' × 26'.
About 10 more galaxies can be found in the photo.
Technical information
- Telescope/Lens
- Jupiter-21M
- Camera
- Sony NEX-5T
- Mount
- Homemade Astrotracker
- Software
- DeepSkyStacker, FitStacker, Adobe Lightroom
- Location
- Kolomna, Russia
Light pollution
Yellow, Bortle 5 zone
- Date taken
Exposure
- 100 × 30″ · ISO/Gain: 1600 · f5.6 ·
- 470 × 30″ · ISO/Gain: 3200 · f5.6 ·
Total exposure: 4 h 45 m
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