Daily Sunspot Evaluation
Observation Sheet Monday, 31 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)
- 15
- Number of spots (f)
- 81
- Relative number (R)
- 231
- Observer
- KA
- Reading
- all checks consistent
- File
- 19561231.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | 29 | 5E | ||||
| 2 | J – 1 | 24 | 7E | ||||
| 3 | E – 35 | 20 | 32E | ||||
| 4 | A – 2 | 26 | 50E | ||||
| 5 | A – 3 | -16 | 67E | ||||
| 6 | ? – 2 | -20 | 80E | ||||
| 7 | D – 11 | -21 | 20E | ||||
| 8 | A – 2 | -36 | 38E | ||||
| 9 | A – 3 | -12 | 12W | ||||
| 10 | A – 1 | -15 | 17W | ||||
| 11 | H – 2 | -17 | 79W | ||||
| 12 | ? – 2 | -15 | 90W | ||||
| 13 | H – 4 | 16 | 73W | ||||
| 14 | J – 1 | 13 | 56W | ||||
| 15 | D – 5 | 34 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.