Daily Sunspot Evaluation
Observation Sheet Monday, 30 July 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)
- 12
- Number of spots (f)
- 48
- Relative number (R)
- 168
- Observer
- AK
- Reading
- all checks consistent
- File
- 19560730.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 2 | 25 | 9 | |
| 2 | C – 4 | 24 | 62 | |
| 3 | ? – 1 | 18 | 84 | |
| 4 | B – 12 | -15 | 32 | |
| 5 | A – 2 | -27 | 51 | |
| 6 | C – 3 | -28 | 41 | |
| 7 | C – 5 | -25 | 32 | |
| 8 | A – 2 | -32 | 34 | |
| 9 | J – 2 | -23 | 22 | |
| 10 | E – 12 | -22 | 37 | |
| 11 | A – 1 | 21 | 71 | |
| 12 | C – 2 | 26 | 63 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.