Daily Sunspot Evaluation
Observation Sheet Thursday, 23 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)
- 18
- Number of spots (f)
- 138
- Relative number (R)
- 318
- Observer
- SG
- Reading
- all checks consistent
- File
- 19581023.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 23 | 41E | ||||
| 2 | ? – 2 | 29 | 81E | ||||
| 3 | A – 3 | 18 | 27E | ||||
| 4 | ? – 1 | -16 | 79E | ||||
| 5 | J – 1 | -20 | 36E | ||||
| 6 | B – 3 | -33 | 56E | ||||
| 7 | C – 5 | -9 | 14E | ||||
| 8 | A – 2 | -1 | 0 | ||||
| 9 | F – 59 | -11 | 14W | ||||
| 10 | A – 1 | -26 | 65W | ||||
| 11 | ? – 1 | -30 | 80W | ||||
| 12 | ? – 1 | -18 | 83W | ||||
| 13 | A – 3 | -10 | 62W | ||||
| 14 | E – 31 | -5 | 41W | ||||
| 15 | ? – 4 | -5 | 80W | ||||
| 16 | C – 10 | 19 | 66W | ||||
| 17 | J – 1 | 24 | 77W | ||||
| 18 | B – 8 | 15 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.