Daily Sunspot Evaluation
Observation Details Thursday, 18 June 2026
- No
- 20489
- Date
- 2026 / 06 / 18,354
- Time
- 08:30 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 23
- Relative number (R)
- 63
- Lf
- 2
- P0
- -8.35°
- B0
- 1.38°
- L0
- 237.57°
- Observer
- Emre YILMAN
Remarks: Görüntü Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 4 | 7 | 52.3W | 290 | 54.3W | 3.4 | |
| 2 | BXI – 9 | 18 | 19.3E | 218 | 17.3E | 3.2 | |
| 3 | DSI – 9 | 8 | 49.9E | 188 | 47.9E | 8.7 | |
| 4 | AX_ – 1 | -16 | 08.4W | 246 | 10.4W | - |