Daily Sunspot Evaluation
Observation Sheet Saturday, 6 September 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)
- 4
- Number of spots (f)
- 15
- Relative number (R)
- 55
- Observer
- ET
- Reading
- all checks consistent
- File
- 19520906.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 6 | 0.82 | 125 | |
| 2 | A – 2 | 0.27 | 173 | |
| 3 | H – 5 | 0.88 | 284 | |
| 4 | A – 2 | 0.86 | 292 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.