Daily Sunspot Evaluation
Observation Sheet Friday, 12 October 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)
- 8
- Number of spots (f)
- 36
- Relative number (R)
- 116
- Observer
- MH
- Reading
- all checks consistent
- File
- 19561012.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | H – 1 | 22 | 8 | |
| 2 | H – 9 | -22 | 30 | |
| 3 | C – 3 | -24 | 42 | |
| 4 | A – 3 | -21 | 61 | |
| 5 | ? – 1 | -19 | 76 | |
| 6 | C – 3 | -13 | 53 | |
| 7 | ? – 8 | 21 | 75 | |
| 8 | D – 8 | 26 | 48 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.