Daily Sunspot Evaluation
Observation Sheet Thursday, 11 December 2003
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)
- 4
- Relative number (R)
- 34
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20031211.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 2 | 69E | 7 | 68E | 1.5 | 322 |
| 2 | HS – 1 | -7 | 71W | 147 | 72W | 1.5 | 320 |
| 3 | DSO – 2 | -11 | 68E | 8 | 67E | ~5 | 321 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.