Daily Sunspot Evaluation
Observation Sheet Saturday, 8 December 1951
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)
- 17
- Relative number (R)
- 57
- Observer
- WG
- Reading
- all checks consistent
- File
- 19511208.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 3 | 0.68 | 109 | |
| 2 | B – 5 | 0.26 | 123 | |
| 3 | A – 1 | 0.55 | 261 | |
| 4 | D – 8 | 0.73 | 267 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.