Daily Sunspot Evaluation
Observation Sheet Saturday, 9 August 1952
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)
- 16
- Relative number (R)
- 66
- Observer
- WG
- Reading
- all checks consistent
- File
- 19520809.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 9 | 0.86 | 92 | |
| 2 | J – 1 | 0.38 | 99 | |
| 3 | A – 2 | 0.45 | 125 | |
| 4 | J – 1 | 0.58 | 126 | |
| 5 | C – 3 | 0.7 | 285 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.