Daily Sunspot Evaluation
Observation Sheet Saturday, 10 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)
- 6
- Number of spots (f)
- 29
- Relative number (R)
- 89
- Observer
- WG
- Reading
- all checks consistent
- File
- 19551210.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 3 | 0.53 | 1 | |
| 2 | C – 10 | 0.46 | 45 | |
| 3 | B – 8 | 0.45 | 172 | |
| 4 | B – 4 | 0.38 | 231 | |
| 5 | J – 1 | 0.98 | 256 | |
| 6 | ? – 3 | 0.98 | 306 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.