Daily Sunspot Evaluation
Observation Sheet Thursday, 11 August 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)
- 11
- Number of spots (f)
- 80
- Relative number (R)
- 190
- Observer
- FY
- Reading
- all checks consistent
- File
- 19600811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 23 | 8E | ||||
| 2 | B – 2 | 17 | 9E | ||||
| 3 | H – 2 | 20 | 15E | ||||
| 4 | A – 1 | 17 | 19E | ||||
| 5 | F – 27 | 21 | 30E | ||||
| 6 | ? – 12 | 16 | 75E | ||||
| 7 | E – 8 | -6 | 70E | ||||
| 8 | A – 2 | -13 | 59E | ||||
| 9 | D – 16 | -15 | 46E | ||||
| 10 | A – 6 | -2 | 6W | ||||
| 11 | B – 3 | -23 | 42WE |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.