Daily Sunspot Evaluation
Observation Sheet Tuesday, 11 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)
- 6
- Number of spots (f)
- 115
- Relative number (R)
- 175
- Observer
- KA
- Reading
- all checks consistent
- File
- 19560911.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 6 | 23 | 74E | ||||
| 2 | ? – 20 | -19 | 68E | ||||
| 3 | H – 3 | -24 | 55E | ||||
| 4 | F – 68 | -24 | 46E | ||||
| 5 | C – 13 | -16 | 9W | ||||
| 6 | C – 5 | -15 | 20W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.