Daily Sunspot Evaluation
Observation Details Wednesday, 18 August 2021
- No
- 19250
- Date
- 2021 / 08 / 18,403
- Time
- 09:40 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 1
- Number of spots (f)
- 2
- Relative number (R)
- 12
- Lf
- 1
- P0
- 17.16°
- B0
- 6.79°
- L0
- 131.09°
- Observer
- Burçin TANIK
Remarks: Görüntü Titremesi, Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 2 | 13 | 08.4E | 123 | 07.4E | 2.2 |