Daily Sunspot Evaluation
Observation Details Saturday, 19 February 2011
- No
- 16150
- Date
- 2011 / 02 / 19,517
- Time
- 12:25 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 69
- Relative number (R)
- 109
- Lf
- 0
- P0
- -18.74°
- B0
- -6.99°
- L0
- 323.27°
- Observer
- Hikmet ÇAKMAK
Remarks: Görüntü Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 26 | 18 | 11W | 334 | 11W | 8.0 | |
| 2 | EAC – 24 | 11 | 08W | 331 | 08W | 10.6 | |
| 3 | BXI – 4 | 11 | 00W | 323 | 00W | 2.9 | |
| 4 | EAC – 15 | -21 | 70W | 33 | 70W | 12.5 |
‹ Previous Report for February 2011 Images of this day Next ›