Daily Sunspot Evaluation
Observation Sheet Wednesday, 10 October 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)
- 5
- Number of spots (f)
- 29
- Relative number (R)
- 79
- Observer
- MH
- Reading
- all checks consistent
- File
- 19511010.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | ? – 1 | 0.98 | 106 | |
| 2 | C – 14 | 0.76 | 109 | |
| 3 | A – 4 | 0.08 | 130 | |
| 4 | H – 9 | 0.83 | 133 | |
| 5 | J – 1 | 0.76 | 285 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.