Daily Sunspot Evaluation
Observation Sheet Tuesday, 25 September 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)
- 10
- Number of spots (f)
- 56
- Relative number (R)
- 156
- Observer
- KA
- Reading
- all checks consistent
- File
- 19560925.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 29 | 18E | ||||
| 2 | ? – 1 | 33 | 79E | ||||
| 3 | ? – 9 | 20 | 79E | ||||
| 4 | C – 18 | -14 | 45E | ||||
| 5 | C – 16 | -27 | 53E | ||||
| 6 | A – 1 | -17 | 20E | ||||
| 7 | C – 4 | -23 | 54W | ||||
| 8 | J – 1 | 14 | 44W | ||||
| 9 | A – 1 | 22 | 53W | ||||
| 10 | J – 1 | 27 | 32W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.