Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 December 2005
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)
- 5
- Number of spots (f)
- 11
- Relative number (R)
- 61
- Observer
- MB
- Reading
- all checks consistent
- File
- 20051228.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 16 | 41W | 326 | 43W | <1.5 | |
| 2 | CSO – 4 | 14 | 31E | 254 | 29E | 7.5 | |
| 3 | CAO – 3 | 12 | 48E | 237 | 46E | 06 | |
| 4 | HR – 1 | -6 | 02W | 287 | 04W | 0.5 | |
| 5 | HA – 1 | -2 | 23E | 262 | 21E | >1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.