Daily Sunspot Evaluation
Observation Sheet Wednesday, 31 August 1955
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)
- 38
- Relative number (R)
- 98
- Observer
- KA
- Reading
- all checks consistent
- File
- 19550831.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 9 | 0.86 | 83 | |
| 2 | ? – 2 | 0.99 | 95 | |
| 3 | A – 3 | 0.52 | 163 | |
| 4 | A – 5 | 0.49 | 180 | |
| 5 | B – 7 | 0.51 | 318 | |
| 6 | C – 12 | 0.8 | 342 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.