Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 October 1960
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)
- 7
- Number of spots (f)
- 52
- Relative number (R)
- 122
- Observer
- AB
- Reading
- all checks consistent
- File
- 19601012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 19 | 42E | ||||
| 2 | A – 1 | -7 | 53E | ||||
| 3 | D – 11 | -15 | 51E | ||||
| 4 | B – 3 | -18 | 29W | ||||
| 5 | C – 13 | -16 | 51W | ||||
| 6 | G – 4 | 8 | 56W | ||||
| 7 | E – 19 | 12 | 14WE |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.