Daily Sunspot Evaluation
Observation Sheet Thursday, 22 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)
- 9
- Number of spots (f)
- 44
- Relative number (R)
- 134
- Observer
- AK
- Reading
- all checks consistent
- File
- 19551222.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 3 | 0.52 | 50 | |
| 2 | A – 4 | 0.9 | 59 | |
| 3 | A – 2 | 0.72 | 64 | |
| 4 | E – 16 | 0.42 | 137 | |
| 5 | J – 2 | 0.4 | 151 | |
| 6 | C – 11 | 0.75 | 232 | |
| 7 | ? – 4 | 0.98 | 301 | |
| 8 | A – 1 | 0.93 | 304 | |
| 9 | A – 1 | 0.59 | 343 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.