Daily Sunspot Evaluation
Observation Sheet Monday, 13 August 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)
- 7
- Number of spots (f)
- 61
- Relative number (R)
- 131
- Observer
- AG
- Reading
- all checks consistent
- File
- 19560813.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 23 | 2 | |
| 2 | A – 1 | 27 | 13 | |
| 3 | C – 7 | 28 | 43 | |
| 4 | J – 1 | -15 | 46 | |
| 5 | F – 31 | -17 | 24 | |
| 6 | A – 1 | -26 | 15 | |
| 7 | E – 19 | 23 | 12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.