Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 August 1959
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)
- 14
- Number of spots (f)
- 85
- Relative number (R)
- 225
- Observer
- SG
- Reading
- all checks consistent
- File
- 19590812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 10 | 16 | 0 | ||||
| 2 | G – 15 | 12 | 56E | ||||
| 3 | B – 2 | 3 | 42E | ||||
| 4 | B – 5 | 10 | 25E | ||||
| 5 | A – 1 | -19 | 68W | ||||
| 6 | I – 1 | -13 | 53W | ||||
| 7 | I – 6 | 8 | 43W | ||||
| 8 | D – 16 | 2 | 61W | ||||
| 9 | A – 1 | 9 | 25W | ||||
| 10 | D – 9 | 11 | 77W | ||||
| 11 | B – 8 | 14 | 20W | ||||
| 12 | C – 8 | 20 | 32W | ||||
| 13 | A – 1 | 28 | 35W | ||||
| 14 | B – 2 | 15 | 11W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.