Daily Sunspot Evaluation
Observation Sheet Saturday, 4 October 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)
- 71
- Relative number (R)
- 191
- Observer
- FY
- Reading
- all checks consistent
- File
- 19581004.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | 12 | 5E | ||||
| 2 | A – 1 | 18 | 20E | ||||
| 3 | ? – 2 | 22 | 76E | ||||
| 4 | B – 2 | 16 | 70E | ||||
| 5 | C – 14 | -6 | 12E | ||||
| 6 | B – 4 | -15 | 19E | ||||
| 7 | B – 5 | -14 | 6W | ||||
| 8 | ? – 3 | -18 | 82W | ||||
| 9 | H – 8 | -10 | 57W | ||||
| 10 | C – 15 | 4 | 57W | ||||
| 11 | J – 1 | 18 | 74W | ||||
| 12 | G – 5 | 28 | 38W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.