Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 September 1959
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)
- 11
- Number of spots (f)
- 78
- Relative number (R)
- 188
- Observer
- SG
- Reading
- all checks consistent
- File
- 19590923.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 25 | 2E | ||||
| 2 | C – 14 | 28 | 18E | ||||
| 3 | B – 3 | 18 | 13E | ||||
| 4 | A – 1 | 11 | 34E | ||||
| 5 | B – 13 | -11 | 28E | ||||
| 6 | E – 18 | -8 | 16E | ||||
| 7 | C – 9 | -10 | 43W | ||||
| 8 | A – 4 | -16 | 65W | ||||
| 9 | C – 7 | 3 | 13W | ||||
| 10 | B – 6 | 12 | 49W | ||||
| 11 | A – 1 | 13 | 13W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.