Daily Sunspot Evaluation
Observation Sheet Friday, 25 January 1957
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)
- 14
- Number of spots (f)
- 108
- Relative number (R)
- 248
- Observer
- KA
- Reading
- all checks consistent
- File
- 19570125.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 2 | 23 | 11 | |
| 2 | J – 1 | 33 | 25 | |
| 3 | B – 8 | 25 | 26 | |
| 4 | A – 6 | 17 | 44 | |
| 5 | A – 1 | 18 | 54 | |
| 6 | J – 3 | -21 | 49 | |
| 7 | E – 23 | -17 | 12 | |
| 8 | B – 6 | -23 | 50 | |
| 9 | J – 4 | -27 | 87 | |
| 10 | J – 2 | -20 | 77 | |
| 11 | J – 1 | -17 | 79 | |
| 12 | C – 16 | 10 | 42 | |
| 13 | H – 34 | 16 | 47 | |
| 14 | A – 1 | 10 | 32 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.