Daily Sunspot Evaluation
Observation Sheet Friday, 12 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)
- 9
- Number of spots (f)
- 86
- Relative number (R)
- 176
- Observer
- BG
- Reading
- all checks consistent
- File
- 19600812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | 21 | 2E | ||||
| 2 | B – 2 | 18 | 4E | ||||
| 3 | F – 20 | 22 | 17E | ||||
| 4 | E – 15 | 18 | 62E | ||||
| 5 | E – 14 | -6 | 57E | ||||
| 6 | A – 4 | -10 | 45E | ||||
| 7 | D – 12 | -13 | 33E | ||||
| 8 | E – 17 | -1 | 22WE | ||||
| 9 | A – 1 | -21 | 55W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.