Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 June 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)
- 9
- Number of spots (f)
- 39
- Relative number (R)
- 129
- Observer
- ET
- Reading
- all checks consistent
- File
- 19560612.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 4 | 0.75 | 39 | |
| 2 | D – 12 | 0.86 | 53 | |
| 3 | A – 1 | 0.68 | 57 | |
| 4 | A – 1 | 0.62 | 67 | |
| 5 | A – 2 | 0.9 | 106 | |
| 6 | H – 10 | 0.48 | 157 | |
| 7 | A – 5 | 0.84 | 231 | |
| 8 | ? – 1 | 0.97 | 286 | |
| 9 | A – 3 | 0.57 | 300 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.