Daily Sunspot Evaluation
Observation Details Thursday, 21 August 2025
- No
- 20328
- Date
- 2025 / 08 / 21,292
- Time
- 07:00 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 8
- Relative number (R)
- 48
- Lf
- 3
- P0
- 18.08°
- B0
- 6.91°
- L0
- 249.49°
- Observer
- Burçin TANIK
Remarks: Görüntü Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 3 | 8 | 28.3E | 221 | 25.3E | 4.0 | |
| 2 | HH_ – 1 | 10 | 72.5E | 177 | 69.5E | 4.4 | |
| 3 | DSO – 3 | -18 | 09.1W | 259 | 12.1W | 4.6 | |
| 4 | HR_ – 1 | -8 | 40.0E | 210 | 37.0E | 1.7 |