Daily Sunspot Evaluation
Observation Sheet Friday, 25 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)
- 5
- Number of spots (f)
- 45
- Relative number (R)
- 95
- Observer
- FY
- Reading
- all checks consistent
- File
- 19560525.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.94 | 89 | |
| 2 | A – 5 | 0.45 | 125 | |
| 3 | F – 34 | 0.33 | 171 | |
| 4 | C – 4 | 0.69 | 217 | |
| 5 | J – 1 | 0.93 | 279 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.