Daily Sunspot Evaluation
Observation Sheet Friday, 29 June 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)
- 58
- Relative number (R)
- 158
- Observer
- FY
- Reading
- all checks consistent
- File
- 19560629.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.44 | 32 | |
| 2 | C – 15 | 0.67 | 40 | |
| 3 | ? – 4 | 0.95 | 57 | |
| 4 | D – 14 | 0.71 | 60 | |
| 5 | A – 1 | 0.94 | 104 | |
| 6 | ? – 1 | 0.89 | 110 | |
| 7 | B – 2 | 0.88 | 111 | |
| 8 | B – 4 | 0.73 | 128 | |
| 9 | C – 14 | 0.55 | 171 | |
| 10 | J – 2 | 0.36 | 214 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.