Daily Sunspot Evaluation
Observation Details Thursday, 22 April 2021
- No
- 19167
- Date
- 2021 / 04 / 22,389
- Time
- 09:20 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 13
- Relative number (R)
- 53
- Lf
- 1
- P0
- -25.35°
- B0
- -4.99°
- L0
- 252.23°
- 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 | 19 | 75.8W | 329 | 76.8W | 4.6 | |
| 2 | BXI – 6 | -22 | 11.4W | 264 | 12.4W | 7.4 | |
| 3 | HS_ – 3 | -27 | 04.2W | 256 | 05.2W | 1.8 | |
| 4 | HS_ – 1 | -16 | 47.4E | 205 | 46.4E | 1.7 |