Daily Sunspot Evaluation
Observation Details Thursday, 21 October 2021
- No
- 19303
- Date
- 2021 / 10 / 21,299
- Time
- 07:10 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 4
- Relative number (R)
- 24
- Lf
- 3
- P0
- 25.80°
- B0
- 5.38°
- L0
- 7.58°
- Observer
- Burçin TANIK
Remarks: Görüntü Titremesi, Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 3 | 23 | 48.7E | 319 | 45.7E | 4.1 | |
| 2 | HH_ – 1 | -18 | 34.3E | 333 | 31.3E | 2.3 |
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