Daily Sunspot Evaluation
Observation Sheet Saturday, 29 December 1956
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)
- 13
- Number of spots (f)
- 44
- Relative number (R)
- 174
- Observer
- FY
- Reading
- all checks consistent
- File
- 19561229.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | H – 1 | 35 | 2 | |
| 2 | D – 5 | 29 | 30 | |
| 3 | J – 1 | 24 | 32 | |
| 4 | B – 3 | 17 | 36 | |
| 5 | E – 11 | 20 | 58 | |
| 6 | D – 3 | -20 | 45 | |
| 7 | A – 3 | -19 | 4 | |
| 8 | A – 1 | -22 | 42 | |
| 9 | E – 10 | -16 | 52 | |
| 10 | H – 1 | 15 | 48 | |
| 11 | J – 1 | 13 | 30 | |
| 12 | A – 1 | 17 | 39 | |
| 13 | A – 3 | 18 | 28 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.