Daily Sunspot Evaluation
Observation Sheet Saturday, 31 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)
- 4
- Number of spots (f)
- 5
- Relative number (R)
- 45
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20051231.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 13 | 13W | 257 | 14W | 3 | |
| 2 | HA – 2 | 12 | 10E | 234 | 09E | ~1.5 | |
| 3 | HA – 1 | -15 | 73W | 317 | 74W | 1 | |
| 4 | HA – 1 | -3 | 19W | 263 | 20W | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.