Daily Sunspot Evaluation
Observation Sheet Friday, 7 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)
- 16
- Number of spots (f)
- 96
- Relative number (R)
- 256
- Observer
- ET
- Reading
- all checks consistent
- File
- 19560907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 26 | 20E | ||||
| 2 | A – 3 | 24 | 25E | ||||
| 3 | A – 3 | 13 | 42E | ||||
| 4 | E – 11 | -15 | 40E | ||||
| 5 | F – 42 | -24 | 57E | ||||
| 6 | C – 8 | -15 | 5E | ||||
| 7 | A – 1 | -32 | 13W | ||||
| 8 | A – 1 | -21 | 26W | ||||
| 9 | B – 2 | -17 | 25W | ||||
| 10 | C – 4 | 14 | 66W | ||||
| 11 | A – 3 | 16 | 48W | ||||
| 12 | ? – 3 | 17 | 78W | ||||
| 13 | A – 3 | 20 | 40W | ||||
| 14 | A – 2 | 22 | 38W | ||||
| 15 | B – 6 | 25 | 40W | ||||
| 16 | H – 2 | 32 | 61W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.