Daily Sunspot Evaluation
Observation Sheet Sunday, 9 September 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)
- 81
- Relative number (R)
- 151
- Observer
- ED
- Reading
- all checks consistent
- File
- 19790909.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 28 | 14 | 20E | 345 | 17E | 190 | |
| 2 | B – 4 | 27 | 41E | 324 | 38E | 192 | |
| 3 | C – 6 | 14 | 61E | 304 | 58E | 175 | |
| 4 | D – 7 | 10 | 62E | 303 | 59E | 196 | |
| 5 | H – 8 | -18 | 34W | 39 | 37W | 183 | |
| 6 | E – 22 | 13 | 44W | 49 | 47W | 187 | |
| 7 | G – 6 | 21 | 59W | 64 | 62W | 178 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.