Daily Sunspot Evaluation
Observation Details Wednesday, 18 April 2012
- No
- 16478
- Date
- 2012 / 04 / 18,472
- Time
- 11:20 UT
- Seeing
- 2 / 5
- Number of groups (g)
- 6
- Number of spots (f)
- 71
- Relative number (R)
- 131
- Lf
- 0
- P0
- -25.75°
- B0
- -5.31°
- L0
- 128.38°
- Observer
- Hikmet ÇAKMAK
Remarks: Yoğun Bulutlu, Bulutlar Arasında
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 15 | 16 | 21E | 107 | 21E | 7.2 | |
| 2 | HA_ – 3 | 12 | 59E | 69 | 59E | 1.3 | |
| 3 | BXI – 11 | -27 | 28W | 156 | 28W | 5.0 | |
| 4 | CAI – 7 | -24 | 11W | 139 | 11W | 6.3 | |
| 5 | BXO – 2 | -26 | 21E | 107 | 21E | 4.4 | |
| 6 | EAI – 33 | -17 | 36E | 92 | 36E | 10.0 |