Daily Sunspot Evaluation
Observation Sheet Thursday, 1 September 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)
- 7
- Number of spots (f)
- 44
- Relative number (R)
- 114
- Observer
- KA
- Reading
- all checks consistent
- File
- 19550901.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 15 | 0.76 | 80 | |
| 2 | ? – 1 | 0.97 | 85 | |
| 3 | ? – 4 | 0.94 | 94 | |
| 4 | ? – 2 | 0.98 | 135 | |
| 5 | C – 13 | 0.45 | 204 | |
| 6 | B – 2 | 0.68 | 313 | |
| 7 | B – 7 | 0.87 | 338 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.