Daily Sunspot Evaluation
Observation Details Sunday, 17 August 2025
- No
- 20326
- Date
- 2025 / 08 / 17,517
- Time
- 12:25 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 3
- Relative number (R)
- 23
- Lf
- 0
- P0
- 16.88°
- B0
- 6.75°
- L0
- 299.37°
- Observer
- Olcay PLEVNE
Remarks: Bulutlar Arasında, Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CSI – 2 | -6 | 05.1W | 304 | 05.1W | 3.6 | |
| 2 | AX_ – 1 | -16 | 34.6E | 265 | 34.6E | - |