Night of 19–20 September 2026
4 objects · 3 h 50 min of light · 21:55–04:50 · Moon 60%
The telescope worked from 21:55 to 04:50 and shot Galaxy NGC 7331 (Caldwell 30) + SN 2026aaiv, Triangulum Galaxy, Jellyfish Nebula and Horsehead Nebula, gathering 3 h 50 min of deep-sky light.
The Moon was a first quarter at 60% illumination, a noticeable glow for broadband targets.
Forecast for the night: partly cloudy, average cloud cover 54%, down to 15.5 °C, wind up to 1.2 m/s. This is the forecast saved before the night, not a measurement.
What was shot
| Time | Object | Filter | Exposure × frames | Stacked | Light |
|---|---|---|---|---|---|
| 21:55–23:13 | Galaxy NGC 7331 (Caldwell 30) + SN 2026aaiv | none | 15 s × 240 | 216 / 240 | 54 min |
| 00:07–00:57 | Triangulum Galaxy | none | 15 s × 158 | 157 / 158 | 39 min |
| 01:03–03:11 | Jellyfish Nebula | dual-band | 90 s × 76 | 57 / 76 | 1 h 26 min |
| 03:17–04:50 | Horsehead Nebula | dual-band | 90 s × 54 | 34 / 54 | 51 min |
What worked and what got in the way
- The longest night for Galaxy NGC 7331 (Caldwell 30) + SN 2026aaiv: 54 min of light.
- Frames from this night went into a finished image of Triangulum Galaxy.
- Jellyfish Nebula: the device rejected 25% of frames (57 of 76 stacked), usually clouds, haze or tracking.
- Horsehead Nebula: the device rejected 37% of frames (34 of 54 stacked), usually clouds, haze or tracking.