Daily Sunspot Evaluation
Observation Sheet Saturday, 19 May 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)
- 11
- Number of spots (f)
- 61
- Relative number (R)
- 171
- Observer
- WG
- Reading
- all checks consistent
- File
- 19560519.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.43 | 10 | |
| 2 | C – 9 | 0.53 | 10 | |
| 3 | J – 1 | 0.94 | 89 | |
| 4 | ? – 1 | 0.98 | 92 | |
| 5 | C – 16 | 0.72 | 101 | |
| 6 | B – 9 | 0.72 | 212 | |
| 7 | H – 1 | 0.7 | 222 | |
| 8 | A – 3 | 0.9 | 223 | |
| 9 | A – 2 | 0.94 | 276 | |
| 10 | A – 1 | 0.82 | 283 | |
| 11 | D – 17 | 0.88 | 286 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.