Horizontal banding sorted. Camera into USB 2 not 3, and not through a USB hub.
Not very happy with the processing.
| Object ID | Sh2-155 / C9 Cave Nebula |
| Details | 2021-09-02 |
| Telescope | 250mm f4.8 Newtonian Tri-band filter |
| Camera | QHY168C @-15°C |
| Exposure(s) | 20x300s darks, flats, dark-flats |
| Capture | NINA |
| Processing | APP, Photoshop |
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