Daily Sunspot Evaluation
Observation Sheet Sunday, 12 August 1979
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)
- 7
- Number of spots (f)
- 51
- Relative number (R)
- 121
- Observer
- ED
- Reading
- all checks consistent
- File
- 19790812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 5 | 26 | 11E | 4 | 08E | 135 | |
| 2 | F – 33 | 15 | 22E | 353 | 19E | 136 | |
| 3 | ? – 1 | 18 | 77E | 298 | 74E | 145 | |
| 4 | ? – 1 | -21 | 76E | 299 | 73E | 146 | |
| 5 | A – 1 | -26 | 26E | 349 | 23E | 147 | |
| 6 | G – 3 | -16 | 10W | 25 | 13W | 132 | |
| 7 | B – 7 | -26 | 14W | 29 | 17W | 133 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.