Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 9
- Number of spots (f)
- 67
- Relative number (R)
- 157
- Observer
- AK
- Reading
- all checks consistent
- File
- 19581007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 16 | 19 | 33E | ||||
| 2 | C – 11 | 13 | 42E | ||||
| 3 | A – 1 | -13 | 20W | ||||
| 4 | B – 13 | -16 | 44W | ||||
| 5 | A – 1 | -11 | 35W | ||||
| 6 | C – 3 | -6 | 35W | ||||
| 7 | C – 16 | 8 | 29W | ||||
| 8 | J – 4 | 11 | 40W | ||||
| 9 | ? – 2 | 28 | 27W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.