Daily Sunspot Evaluation
Observation Sheet Friday, 10 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)
- 29
- Relative number (R)
- 69
- Observer
- HE
- Reading
- all checks consistent
- File
- 20040910.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAO – 6 | -9 | 74W | 134 | 77W | 12 | 163 |
| 2 | HK – 4 | -10 | 35W | 95 | 38W | 3.5 | 159 |
| 3 | DAC – 13 | -5 | 28W | 88 | 31W | 6 | 162 |
| 4 | DAC – 6 | 4 | 73E | 347 | 70E | ~10 | 165 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.