Daily Sunspot Evaluation
Observation Details Thursday, 21 July 2011
- No
- 16266
- Date
- 2011 / 07 / 21,299
- Time
- 07:10 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 3
- Number of spots (f)
- 47
- Relative number (R)
- 77
- Lf
- 3
- P0
- 6.20°
- B0
- 4.87°
- L0
- 117.94°
- Observer
- Sinan ALİŞ
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HS_ – 1 | 18 | 49W | 167 | 52W | 2.4 | |
| 2 | DAI – 20 | 23 | 42E | 76 | 39E | 8.3 | |
| 3 | DAC – 26 | -22 | 20W | 138 | 23W | 9.1 |