Daily Sunspot Evaluation
Observation Sheet Monday, 4 August 1969
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)
- 115
- Relative number (R)
- 185
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 19 | 70°E | 43 | |||
| 2 | C – 10 | 9 | 29°E | 54 | |||
| 3 | E – 22 | -12 | 46°E | 67 | |||
| 4 | B – 19 | -23 | 32°E | 51 | |||
| 5 | E – 49 | -0.8 | 43°W | 426 | |||
| 6 | A – 2 | -16 | 68°W | 151 | |||
| 7 | D – 12 | 13 | 34°W | 147 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.