Daily Sunspot Evaluation
Observation Sheet Friday, 23 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)
- 57
- Relative number (R)
- 157
- Observer
- FY
- Reading
- all checks consistent
- File
- 19560323.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.71 | 4 | |
| 2 | C – 4 | 0.91 | 87 | |
| 3 | C – 11 | 0.72 | 92 | |
| 4 | D – 17 | 0.77 | 97 | |
| 5 | J – 2 | 0.75 | 226 | |
| 6 | J – 1 | 0.94 | 226 | |
| 7 | J – 1 | 0.98 | 268 | |
| 8 | E – 10 | 0.6 | 292 | |
| 9 | A – 9 | 0.59 | 312 | |
| 10 | A – 1 | 0.43 | 352 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.