Daily Sunspot Evaluation
Observation Sheet Wednesday, 7 November 1951
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)
- 23
- Relative number (R)
- 83
- Observer
- ET
- Reading
- all checks consistent
- File
- 19511107.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.87 | 106 | |
| 2 | C – 10 | 0.71 | 127 | |
| 3 | H – 3 | 0.6 | 141 | |
| 4 | A – 1 | 0.16 | 281 | |
| 5 | ? – 6 | 0.96 | 281 | |
| 6 | ? – 2 | 0.96 | 306 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.