Daily Sunspot Evaluation
Observation Details Sunday, 20 September 2015
- No
- 17556
- Date
- 2015 / 09 / 20,316
- Time
- 07:35 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 25
- Relative number (R)
- 65
- Lf
- 2
- P0
- 24.80°
- B0
- 7.11°
- L0
- 188.12°
- Observer
- Hikmet ÇAKMAK
Remarks: Görüntü Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 5 | 13 | 08W | 196 | 10W | 7.3 | |
| 2 | ?__ – 3 | 10 | 84E | 104 | 82E | 4.2 | |
| 3 | EAI – 12 | -20 | 44W | 233 | 46W | 13.5 | |
| 4 | CSO – 5 | -14 | 11W | 199 | 13W | 6.1 |
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