Daily Sunspot Evaluation
Observation Details Wednesday, 21 July 2021
- No
- 19222
- Date
- 2021 / 07 / 21,344
- Time
- 08:15 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 12
- Relative number (R)
- 52
- Lf
- 2
- P0
- 6.46°
- B0
- 4.91°
- L0
- 142.14°
- Observer
- Olcay PLEVNE
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 4 | 25 | 57.4W | 200 | 59.4W | 7.2 | |
| 2 | BXO – 2 | 20 | 26.2E | 116 | 24.2E | 2.8 | |
| 3 | CAI – 5 | 25 | 59.5E | 83 | 57.5E | 8.4 | |
| 4 | AX_ – 1 | -16 | 52W | 194 | 54W | - |