Daily Sunspot Evaluation
Observation Sheet Wednesday, 14 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)
- 31
- Relative number (R)
- 91
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510214.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | D – 11 | 0.74 | 51 | |
| 2 | ? – 1 | 0.97 | 60 | |
| 3 | B – 7 | 0.74 | 69 | |
| 4 | C – 3 | 0.34 | 90 | |
| 5 | C – 4 | 0.22 | 310 | |
| 6 | B – 5 | 0.3 | 313 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.