Daily Sunspot Evaluation
Observation Sheet Sunday, 28 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)
- 17
- Relative number (R)
- 47
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20031228.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 12 | 10 | 49W | 261 | 50W | 18.5 | 327 |
| 2 | CAO – 4 | -11 | 30W | 242 | 31W | ~4 | 331 |
| 3 | HR – 1 | -20 | 14W | 226 | 15W | 0.5 | 332 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.