Daily Sunspot Evaluation
Observation Details Tuesday, 20 August 2013
- No
- 16912
- Date
- 2013 / 08 / 20,351
- Time
- 08:25 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 7
- Number of spots (f)
- 55
- Relative number (R)
- 125
- Lf
- 2
- P0
- 17.77°
- B0
- 6.87°
- L0
- 152.21°
- Observer
- Korhan YELKENCİ
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CSI – 9 | 16 | 31W | 183 | 33W | 8.4 | |
| 2 | CSI – 8 | 15 | 65E | 87 | 63E | 9.2 | |
| 3 | BXI – 2 | -5 | 66W | 218 | 68W | 4.8 | |
| 4 | CSO – 3 | -13 | 44W | 196 | 46W | 6.0 | |
| 5 | DRI – 18 | -13 | 24W | 176 | 26W | 6.2 | |
| 6 | CHI – 8 | -9 | 14E | 138 | 12E | 6.2 | |
| 7 | CAI – 7 | -19 | 55E | 97 | 53E | 7.4 |