Daily Sunspot Evaluation
Observation Sheet Thursday, 1 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)
- 4
- Number of spots (f)
- 43
- Relative number (R)
- 83
- Observer
- WG
- Reading
- all checks consistent
- File
- 19511101.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.16 | 41 | |
| 2 | A – 1 | 0.38 | 137 | |
| 3 | E – 37 | 0.23 | 210 | |
| 4 | A – 4 | 0.68 | 307 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.