01 Sept 2026
Dataset uses 3 panels to capture a 325,000 km long quiescent filament group on the Sun. Quiescent filaments are long lived, relatively stable cool plasma suspended over a polarity inversion line. Seeing was 4/5. A good deal of structure is visible. To create this image you will need to process and then photomerge 3 separate captures.
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 20 | 1m | 3 |