M81 M82 NGC3077
Photo description / processing
I bought the camera in winter.
For a long time, snowdrifts lay in the village and the observatory roof wouldn't open due to the frost.
In April, I finally got the new camera up and running — all the components for adjusting the back focus and so on had arrived.
At the end of April, there were only a few days left to capture the RGB channels, which I did. Then came the Moon... a full Moon. I tried to shoot H-alpha throughout those nights, but didn't manage to extract much. Some data was simply lost during H-alpha integration. I shot the L channel in May, and added a bit more RGB. Now the weather has turned bad, and the dark time (Sun below 14 degrees) is only about two hours. I see no point in accumulating more LRGB data, so I'm posting the work as is — everything I managed to gather over 15 days.
I'm almost satisfied with the processing — I managed to bring out the IFN without losing saturation. All thanks to PixInsight.
Greetings to the haters — BlurXTerminator was used here only for star correction (not applied to galaxy details). I did without StarXTerminator because it slightly suppresses the galaxy clusters, of which there are many here.
Technical information
- Telescope/Lens
- Sky-Watcher 200PDS
- Camera
- ZWO ASI 2600MM Pro
- Mount
- МТ-120
- Guide Scope
- Orion 80/400
- Guide Camera
- Zwo ASI662MC
- Accessories
- Starizona 0.75 Nexus Reducer, ZWO EFW, ZWO EAF
- Software
- Pixinsight, Adobe Photoshop, DeepSkyStacker, Siril
- Location
- деревня Новая Дорога, Россия
Light pollution
Green, Bortle 4 zone
- Date taken
Exposure
- 16 × 300″ · ISO/Gain: 100 · B ·
- 26 × 300″ · ISO/Gain: 100 · G ·
- 32 × 300″ · ISO/Gain: 100 · R ·
- 15 × 300″ · ISO/Gain: 100 · L ·
- 116 × 300″ · ISO/Gain: 100 · H ·
Total exposure: 17 h 5 m









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