M109
Photo description / processing
A bright 2.4 magnitude star of the Big Dipper is located 40 arcminutes from the galaxy.
The star is outside the field of view, but reflections of its light from the walls of the telescope's internal baffle
created several concentric colored arcs across the entire field of view.
I had to heavily suppress the sky background.
Technical information
- Telescope/Lens
- Celestron EdgeHD 11
- Camera
- Player One Poseidon-C
- Mount
- iOptron CEM120
- Guide Scope
- C11 EdgeHD + OAG
- Guide Camera
- Player One Sedna
- Accessories
- Lepus 0.63x reducer
- Software
- PixInsight
- Location
- Москва, Кубинка (недалеко) , Россия
Light pollution
Orange, Bortle 6 zone
- Date taken
Exposure
- 1 × 600″ · ISO/Gain: 125 · Antlia QuadBand ·
- 25 × 300″ · ISO/Gain: 125 · Antlia QuadBand ·
- 20 × 180″ · ISO/Gain: 125 · Antlia QuadBand ·
Total exposure: 3 h 15 m
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