Daily Sunspot Evaluation
Observation Details Friday, 20 August 2021
- No
- 19252
- Date
- 2021 / 08 / 20,309
- Time
- 07:25 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 1
- Number of spots (f)
- 5
- Relative number (R)
- 15
- Lf
- 3
- P0
- 17.77°
- B0
- 6.87°
- L0
- 105.90°
- Observer
- Burçin TANIK
Remarks: Görüntü Titremesi, Bulutlar Arasında, Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 5 | 13 | 17.8W | 124 | 20.8W | 4.4 |