Daily Sunspot Evaluation
Observation Sheet Saturday, 31 December 1955
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)
- 35
- Relative number (R)
- 85
- Observer
- WG
- Reading
- all checks consistent
- File
- 19551231.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 14 | 0.44 | 10 | |
| 2 | C – 12 | 0.74 | 123 | |
| 3 | A – 1 | 0.41 | 159 | |
| 4 | D – 7 | 0.72 | 306 | |
| 5 | A – 1 | 0.4 | 348 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.