Daily Sunspot Evaluation
Observation Sheet Saturday, 11 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)
- 5
- Number of spots (f)
- 24
- Relative number (R)
- 74
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19790811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 3 | 26 | 25E | 3 | 22E | 135 | |
| 2 | H – 17 | 15 | 35E | 353 | 32E | 136 | |
| 3 | A – 1 | -16 | 57E | 331 | 54E | 144 | |
| 4 | J – 1 | -16 | 01E | 27 | 02W | 132 | |
| 5 | A – 2 | 28 | 02W | ⚠ | 133 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.