Daily Sunspot Evaluation
Observation Details Thursday, 17 September 2026
- No
- 20569
- Date
- 2026 / 09 / 17,441
- Time
- 10:35 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 1
- Number of spots (f)
- 1
- Relative number (R)
- 11
- Lf
- 1
- P0
- 24.41°
- B0
- 7.17°
- L0
- 113.35°
- Observer
- Tuğba BOZTEPE
Remarks: Bulutlar Arasında
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HH_ – 1 | -12 | 75.0W | 188 | 76.0W | 3.7 |
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