Daily Sunspot Evaluation
Observation Details Sunday, 21 October 2012
- No
- 16660
- Date
- 2012 / 10 / 21,371
- Time
- 08:54 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 5
- Number of spots (f)
- 41
- Relative number (R)
- 91
- Lf
- 2
- P0
- 25.78°
- B0
- 5.34°
- L0
- 191.06°
- Observer
- Özgecan ÖNAL
Remarks: Kenar Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HH_ – 1 | 8 | 38W | 229 | 40W | 2.7 | |
| 2 | BXI – 8 | 16 | 04E | 187 | 02E | 2.4 | |
| 3 | EHI – 22 | 7 | 42E | 149 | 40E | 10.5 | |
| 4 | BXI – 8 | -21 | 60W | 251 | 62W | 8.8 | |
| 5 | CHO – 2 | -13 | 81E | 111 | 79E | 6.7 |
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