Daily Sunspot Evaluation
Observation Details Tuesday, 21 May 2013
- No
- 16821
- Date
- 2013 / 05 / 21,302
- Time
- 07:15 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 10
- Number of spots (f)
- 57
- Relative number (R)
- 157
- Lf
- 3
- P0
- -19.07°
- B0
- -1.94°
- L0
- 276.86°
- Observer
- H.ÇAKMAK=Ö.Ö.
Remarks: Görüntü Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 14 | 53W | 330 | 56W | 7.5 | |
| 2 | HA_ – 4 | 13 | 23W | 300 | 26W | 1.5 | |
| 3 | AX_ – 6 | 10 | 16W | 293 | 19W | 1.3 | |
| 4 | BXI – 11 | 13 | 16W | 293 | 19W | 3.1 | |
| 5 | BXI – 12 | 4 | 58E | 219 | 55E | 10.8 | |
| 6 | ?__ – 3 | 10 | 75E | 202 | 72E | 3.7 | |
| 7 | HS_ – 1 | -29 | 54W | 331 | 57W | 2.5 | |
| 8 | BXI – 3 | -20 | 47E | 230 | 44E | 4.1 | |
| 9 | AX_ – 1 | -17 | 50E | 227 | 47E | - | |
| 10 | BXI – 12 | -22 | 65E | 212 | 62E | 6.3 |