Daily Sunspot Evaluation
Observation Details Wednesday, 21 April 2021
- No
- 19166
- Date
- 2021 / 04 / 21,309
- Time
- 07:25 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 3
- Number of spots (f)
- 9
- Relative number (R)
- 39
- Lf
- 3
- P0
- -25.47°
- B0
- -5.09°
- L0
- 266.50°
- Observer
- Olcay PLEVNE
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 2 | 19 | 64.6W | 331 | 67.6W | 10.8 | |
| 2 | CSI – 6 | -25 | 05.2E | 261 | 02.2E | 10.2 | |
| 3 | AX_ – 1 | -17 | 61.3E | 205 | 58.3E | - |