Daily Sunspot Evaluation
Observation Details Thursday, 17 February 2011
- No
- 16148
- Date
- 2011 / 02 / 17,351
- Time
- 08:25 UT
- Seeing
- 2 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 31
- Relative number (R)
- 51
- Lf
- 2
- P0
- -18.05°
- B0
- -6.91°
- L0
- 351.81°
- Observer
- Asuman GÜLTEKİN
Remarks: Görüntü Titremesi, Yoğun Bulutlu
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 10 | 12 | 20E | 329 | 19E | 10.2 | |
| 2 | EAC – 21 | -21 | 42W | 31 | 43W | 13.0 |
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