Daily Sunspot Evaluation
Observation Details Saturday, 17 October 2015
- No
- 17578
- Date
- 2015 / 10 / 17,490
- Time
- 11:45 UT
- Seeing
- 2 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Lf
- 0
- P0
- 26.09°
- B0
- 5.72°
- L0
- 189.57°
- Observer
- Sinan ALİŞ
Remarks: Yoğun Bulutlu
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HS_ – 2 | 10 | 78E | 112 | 78E | 4.7 | |
| 2 | CSO – 2 | -17 | 08W | 198 | 08W | 1.5 | |
| 3 | DAC – 21 | -8 | 29E | 160 | 29E | 7.2 | |
| 4 | HS_ – 1 | -13 | 68E | 122 | 68E | 2.4 |
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