Daily Sunspot Evaluation
Observation Details Thursday, 21 April 2011
- No
- 16184
- Date
- 2011 / 04 / 21,448
- Time
- 10:45 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 5
- Number of spots (f)
- 33
- Relative number (R)
- 83
- Lf
- 1
- P0
- -25.53°
- B0
- -5.11°
- L0
- 239.85°
- Observer
- Sinan ALİŞ
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 1 | 8 | 44W | 284 | 45W | - | |
| 2 | EAI – 16 | 17 | 24W | 264 | 25W | 14.1 | |
| 3 | DAI – 13 | -18 | 50E | 190 | 49E | 9.3 | |
| 4 | HS_ – 1 | -16 | 65E | 175 | 64E | - | |
| 5 | DSO – 2 | -26 | 74E | 166 | 73E | 9.6 |