Daily Sunspot Evaluation
Observation Sheet Monday, 22 January 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)
- 12
- Relative number (R)
- 62
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510122.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 2 | 0.42 | 34 | |
| 2 | A – 1 | 0.44 | 83 | |
| 3 | ? – 1 | 0.99 | 90 | |
| 4 | A – 2 | 0.86 | 274 | |
| 5 | C – 6 | 0.9 | 284 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.