Daily Sunspot Evaluation
Observation Sheet Friday, 31 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)
- 16
- Number of spots (f)
- 169
- Relative number (R)
- 329
- Observer
- ET
- Reading
- all checks consistent
- File
- 19581031.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 11 | 38 | 11E | ||||
| 2 | J – 3 | 42 | 41E | ||||
| 3 | A – 3 | 14 | 27E | ||||
| 4 | B – 5 | 20 | 43E | ||||
| 5 | C – 13 | 15 | 62E | ||||
| 6 | E – 40 | 7 | 41E | ||||
| 7 | A – 4 | -8 | 43E | ||||
| 8 | A – 5 | -16 | 51E | ||||
| 9 | C – 20 | -16 | 41E | ||||
| 10 | G – 10 | -11 | 27E | ||||
| 11 | A – 2 | -21 | 4E | ||||
| 12 | E – 37 | -14 | 11W | ||||
| 13 | A – 3 | -15 | 30W | ||||
| 14 | A – 1 | -20 | 66W | ||||
| 15 | B – 7 | -5 | 66W | ||||
| 16 | ? – 5 | 6 | 77W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.