Daily Sunspot Evaluation
Observation Sheet Friday, 26 September 1958
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)
- 12
- Number of spots (f)
- 111
- Relative number (R)
- 231
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580926.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 18 | 29E | ||||
| 2 | D – 6 | 19 | 38E | ||||
| 3 | A – 1 | 9 | 63E | ||||
| 4 | B – 11 | -8 | 43E | ||||
| 5 | D – 29 | -11 | 50E | ||||
| 6 | B – 10 | -23 | 44E | ||||
| 7 | E – 11 | -18 | 27E | ||||
| 8 | G – 10 | -5 | 7E | ||||
| 9 | B – 3 | -11 | 18W | ||||
| 10 | A – 3 | 15 | 34W | ||||
| 11 | ? – 10 | 22 | 80W | ||||
| 12 | D – 16 | 30 | 28W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.