Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 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)
- 15
- Number of spots (f)
- 58
- Relative number (R)
- 208
- Observer
- MH
- Reading
- all checks consistent
- File
- 19560509.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.28 | 45 | |
| 2 | A – 2 | 0.78 | 92 | |
| 3 | A – 3 | 0.44 | 93 | |
| 4 | J – 1 | 0.7 | 94 | |
| 5 | A – 6 | 0.94 | 95 | |
| 6 | J – 1 | 0.58 | 96 | |
| 7 | J – 1 | 0.8 | 103 | |
| 8 | A – 1 | 0.43 | 111 | |
| 9 | A – 2 | 0.4 | 147 | |
| 10 | J – 1 | 0.74 | 226 | |
| 11 | E – 21 | 0.65 | 279 | |
| 12 | B – 4 | 0.48 | 296 | |
| 13 | D – 11 | 0.41 | 315 | |
| 14 | J – 2 | 0.47 | 333 | |
| 15 | A – 1 | 0.31 | 352 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.