Daily Sunspot Evaluation
Observation Sheet Thursday, 29 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)
- 22
- Relative number (R)
- 112
- Observer
- AK
- Reading
- all checks consistent
- File
- 19551229.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.5 | 45 | |
| 2 | C – 4 | 0.59 | 47 | |
| 3 | A – 2 | 0.59 | 51 | |
| 4 | J – 1 | 0.92 | 117 | |
| 5 | A – 1 | 0.97 | 120 | |
| 6 | A – 1 | 0.65 | 130 | |
| 7 | J – 2 | 0.92 | 255 | |
| 8 | C – 3 | 0.73 | 310 | |
| 9 | A – 7 | 0.48 | 332 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.