Daily Sunspot Evaluation
Observation Details Tuesday, 17 August 2021
- No
- 19249
- Date
- 2021 / 08 / 17,323
- Time
- 07:45 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 8
- Relative number (R)
- 28
- Lf
- 2
- P0
- 16.81°
- B0
- 6.75°
- L0
- 145.37°
- Observer
- Oğuzhan ÇAKIR
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CRI – 7 | 18 | 28.6W | 174 | 30.6W | 3.1 | |
| 2 | AX_ – 1 | -30 | 63.7W | 209 | 65.7W | - |