Daily Sunspot Evaluation
Observation Sheet Saturday, 31 March 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)
- 10
- Number of spots (f)
- 45
- Relative number (R)
- 145
- Observer
- WG
- Reading
- all checks consistent
- File
- 19560331.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.88 | 38 | |
| 2 | J – 3 | 0.35 | 117 | |
| 3 | A – 1 | 0.13 | 194 | |
| 4 | J – 2 | 0.26 | 203 | |
| 5 | C – 5 | 0.66 | 212 | |
| 6 | B – 7 | 0.85 | 222 | |
| 7 | B – 2 | 0.96 | 228 | |
| 8 | ? – 4 | 0.98 | 278 | |
| 9 | B – 2 | 0.68 | 285 | |
| 10 | D – 18 | 0.63 | 299 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.