Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 October 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)
- 32
- Relative number (R)
- 92
- Observer
- KA
- Reading
- all checks consistent
- File
- 19551012.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 2 | 0.84 | 39 | |
| 2 | B – 5 | 0.61 | 172 | |
| 3 | B – 10 | 0.47 | 180 | |
| 4 | B – 3 | 0.8 | 256 | |
| 5 | E – 8 | 0.9 | 318 | |
| 6 | C – 4 | 0.71 | 332 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.