Daily Sunspot Evaluation
Observation Sheet Saturday, 24 August 1957
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)
- 6
- Number of spots (f)
- 52
- Relative number (R)
- 112
- Observer
- MH
- Reading
- all checks consistent
- File
- 19570824.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 7 | 12 | 64 | |
| 2 | B – 7 | -13 | 51 | |
| 3 | G – 4 | -24 | 40 | |
| 4 | H – 2 | -13 | 18 | |
| 5 | A – 1 | -23 | 66 | |
| 6 | E – 31 | 17 | 30 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.