Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 3
- Number of spots (f)
- 31
- Relative number (R)
- 61
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 17 | -9 | 360 | 133 | 360 | ~8 | 163 |
| 2 | HK – 2 | -10 | 03E | 94 | 03E | ~25 | 159 |
| 3 | CAO – 12 | -5 | 12E | 85 | 12E | 6 | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.