Daily Sunspot Evaluation
Observation Sheet Friday, 7 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)
- 9
- Number of spots (f)
- 68
- Relative number (R)
- 158
- Observer
- BG
- Reading
- all checks consistent
- File
- 19601007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 13 | 23E | ||||
| 2 | B – 8 | 10 | 40E | ||||
| 3 | A – 1 | 3 | 42E | ||||
| 4 | B – 9 | 7 | 11E | ||||
| 5 | C – 14 | -18 | 35E | ||||
| 6 | H – 22 | -17 | 15E | ||||
| 7 | A – 1 | -16 | 60W | ||||
| 8 | D – 9 | 5 | 25W | ||||
| 9 | B – 2 | 18 | 14W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.