Daily Sunspot Evaluation
Observation Sheet Monday, 13 February 1956
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)
- 44
- Relative number (R)
- 104
- Observer
- WG
- Reading
- all checks consistent
- File
- 19560213.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | F – 32 | 0.78 | 40 | |
| 2 | ? – 2 | 0.96 | 52 | |
| 3 | ? – 2 | 0.96 | 94 | |
| 4 | C – 6 | 0.58 | 99 | |
| 5 | A – 1 | 0.46 | 118 | |
| 6 | J – 1 | 0.22 | 210 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.