Daily Sunspot Evaluation
Observation Details Saturday, 21 April 2012
- No
- 16481
- Date
- 2012 / 04 / 21,469
- Time
- 11:15 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 8
- Number of spots (f)
- 126
- Relative number (R)
- 206
- Lf
- 0
- P0
- -25.45°
- B0
- -5.05°
- L0
- 88.80°
- Observer
- Hikmet ÇAKMAK
Remarks: Görüntü Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 35 | 16 | 19W | 108 | 19W | 11.2 | |
| 2 | BXI – 5 | 13 | 19E | 70 | 19E | 3.3 | |
| 3 | AX_ – 5 | 13 | 50E | 39 | 50E | 2.8 | |
| 4 | CAI – 5 | -26 | 71W | 160 | 71W | 6.3 | |
| 5 | EKI – 10 | -24 | 51W | 140 | 51W | 11.1 | |
| 6 | EAC – 51 | -16 | 03W | 92 | 03W | 13.1 | |
| 7 | AX_ – 1 | -11 | 01W | 90 | 01W | 0.4 | |
| 8 | DAI – 14 | -17 | 35E | 54 | 35E | 7.6 |