Daily Sunspot Evaluation
Observation Details Tuesday, 21 February 2023
- No
- 19661
- Date
- 2023 / 02 / 21,524
- Time
- 12:35 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 6
- Number of spots (f)
- 45
- Relative number (R)
- 105
- Lf
- 0
- P0
- -19.35°
- B0
- -7.05°
- L0
- 46.54°
- Observer
- Hikmet ÇAKMAK
Remarks: Görüntü Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HA_ – 4 | 11 | 68.2W | 115 | 68.2W | 3.4 | |
| 2 | CAI – 11 | 21 | 55.4W | 102 | 55.4W | 7.2 | |
| 3 | EAC – 18 | 25 | 16.1E | 31 | 16.1E | 12.6 | |
| 4 | DAI – 7 | 25 | 64.9E | 342 | 64.9E | 9.8 | |
| 5 | HS_ – 1 | -14 | 72.4W | 119 | 72.4W | 2.9 | |
| 6 | HA_ – 4 | -22 | 39.6E | 7 | 39.6E | 3.5 |
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