M83 Galaxy Thousand Rubies (Southern Pinwheel)
Photo description / processing
Does not rise above 15 degrees at the latitude of Adygea, so I shot it over several nights. A barred spiral galaxy with powerful star formation, located in the constellation Hydra. Distance about 15 million light-years. Diameter 115,000 light-years. Angular size 12.9'x11.5'.
Technical information
- Telescope/Lens
- Askar SQA 106
- Camera
- ZWO ASI 183 MC Pro
- Mount
- iOptron HAE43 C
- Guide Scope
- Askar 52mm F4
- Guide Camera
- ZWO ASI 120 MM mini
- Software
- SharpCap 4.0, Siril, Adobe Photoshop
- Location
- Адыгея, Станица Даховская, Россия
Light pollution
Green, Bortle 4 zone
- Date taken
Exposure
- 45 × 180″ · ISO/Gain: 120 ·
- 47 × 300″ · ISO/Gain: 120 ·
Total exposure: 6 h 10 m
Photo versions
Current photo
M83 Galaxy Thousand Rubies (Southern Pinwheel)May 9th, 2026
6 h 10 m
Does not rise above 15 degrees at the latitude of Adygea, so I shot it over several nights. A barred spiral galaxy with powerful star formation, located in the constellation Hydra. Distance about 15 million light-years. Diameter 115,000 light-years. Angular size 12.9'x11.5'.
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Regarding Ha – do you do the color calibration before adding Ha to RGB or after?
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Photometric calibration was done after adding it.
But this is just a regular photo, by the way.
Just RGB, no Ha data yet((
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