Daily Sunspot Evaluation
Observation Sheet Wednesday, 11 August 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)
- 73
- Relative number (R)
- 113
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20040811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 11 | 20E | 75 | 19E | ~1 | 148 |
| 2 | HA – 3 | 17 | 55E | 40 | 54E | ~2 | 149 |
| 3 | EKC – 66 | -12 | 12E | 83 | 11E | ~14 | 146 |
| 4 | DAO – 3 | -7 | 70E | 25 | 69E | 4.5 | 150 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.