Daily Sunspot Evaluation
Observation Sheet Saturday, 11 September 2004
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 4
- Number of spots (f)
- 28
- Relative number (R)
- 68
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040911.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 16 | 4 | 60E | 347 | 57E | 9 | 165 |
| 2 | ? – 1 | -9 | 85W | 132 | 88W | ? | 163 |
| 3 | HK – 7 | -11 | 49W | 96 | 52W | ~5 | 159 |
| 4 | DSO – 4 | -6 | 42W | 89 | 45W | 5 | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.