Daily Sunspot Evaluation
Observation Sheet Friday, 22 February 1952
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)
- 3
- Number of spots (f)
- 6
- Relative number (R)
- 36
- Observer
- WG
- Reading
- all checks consistent
- File
- 19520222.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.09 | 193 | |
| 2 | H – 3 | 0.77 | 241 | |
| 3 | J – 2 | 0.73 | 287 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.