Daily Sunspot Evaluation
Observation Sheet Thursday, 1 September 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)
- 4
- Number of spots (f)
- 61
- Relative number (R)
- 101
- Observer
- KA
- Reading
- all checks consistent
- File
- 19600901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 8 | -11 | 25W | ||||
| 2 | D – 15 | -17 | 41W | ||||
| 3 | C – 8 | 17 | 59WE | ||||
| 4 | E – 30 | 19 | 12WE |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.