Daily Sunspot Evaluation
Observation Sheet Friday, 4 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)
- 12
- Number of spots (f)
- 44
- Relative number (R)
- 164
- Observer
- FY
- Reading
- all checks consistent
- File
- 19560504.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.6 | 14 | |
| 2 | E – 21 | 0.58 | 32 | |
| 3 | J – 1 | 0.92 | 36 | |
| 4 | G – 2 | 0.77 | 40 | |
| 5 | B – 5 | 0.87 | 42 | |
| 6 | H – 2 | 0.39 | 107 | |
| 7 | A – 2 | 0.12 | 158 | |
| 8 | A – 1 | 0.54 | 198 | |
| 9 | A – 3 | 0.56 | 202 | |
| 10 | J – 3 | 0.37 | 206 | |
| 11 | J – 2 | 0.44 | 220 | |
| 12 | A – 1 | 0.96 | 271 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.