Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 10
- Number of spots (f)
- 37
- Relative number (R)
- 137
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790807.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 26 | 07E | 74 | 04E | 126 | |
| 2 | ? – 4 | 28 | 80E | 1 | 77E | 135 | |
| 3 | ? – 2 | 17 | 87E | 354 | 84E | 136 | |
| 4 | A – 1 | 13 | 30E | 51 | 27E | 130 | |
| 5 | J – 2 | -14 | 52E | 29 | 49E | 132 | |
| 6 | C – 7 | -25 | 52E | 29 | 49E | 133 | |
| 7 | C – 4 | -17 | 40W | 121 | 43W | 137 | |
| 8 | J – 1 | -22 | 75W | 156 | 78W | 114 | |
| 9 | D – 8 | 4 | 62W | 143 | 65W | 123 | |
| 10 | J – 2 | 11 | 46W | 127 | 49W | 120 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.