Daily Sunspot Evaluation
Observation Sheet Monday, 5 February 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)
- 18
- Relative number (R)
- 78
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510205.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | ? – 2 | 0.98 | 63 | |
| 2 | A – 6 | 0.22 | 212 | |
| 3 | A – 1 | 0.38 | 240 | |
| 4 | J – 5 | 0.5 | 245 | |
| 5 | A – 1 | 0.89 | 265 | |
| 6 | A – 3 | 0.9 | 287 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.