Daily Sunspot Evaluation
Observation Sheet Sunday, 22 April 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)
- 13
- Number of spots (f)
- 83
- Relative number (R)
- 213
- Observer
- KA
- Reading
- all checks consistent
- File
- 19560422.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 4 | 0.32 | 36 | |
| 2 | ? – 1 | 0.39 | 40 | |
| 3 | A – 4 | 0.12 | 36 | |
| 4 | A – 5 | 0.61 | 100 | |
| 5 | A – 7 | 0.46 | 121 | |
| 6 | A – 1 | 0.28 | 176 | |
| 7 | A – 1 | 0.39 | 207 | |
| 8 | A – 1 | 0.96 | 212 | |
| 9 | J – 5 | 0.94 | 220 | |
| 10 | ? – 1 | 0.98 | 225 | |
| 11 | ? – 1 | 0.36 | 265 | |
| 12 | E – 24 | 0.5 | 336 | |
| 13 | B – 28 | 0.61 | 340 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.