Daily Sunspot Evaluation
Observation Sheet Wednesday, 3 September 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)
- 45
- Relative number (R)
- 115
- Observer
- SK
- Reading
- all checks consistent
- File
- 19690903.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 17 | 65E | 341 | |||
| 2 | A – 2 | 14 | 31E | 15 | |||
| 3 | A – 6 | -25 | 07E | 39 | |||
| 4 | J – 3 | -19 | 05W | 51 | |||
| 5 | D – 12 | -11 | 53W | 99 | |||
| 6 | B – 14 | 6 | 35W | 81 | |||
| 7 | ? – 3 | 12 | 81W | 127 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.