Daily Sunspot Evaluation
Observation Sheet Monday, 8 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)
- 34
- Relative number (R)
- 104
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690908.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | -2 | 13E | 327 | |||
| 2 | A – 1 | -13 | 31E | 309 | |||
| 3 | D – 10 | -33 | 15E | 325 | |||
| 4 | A – 3 | -12 | 66W | 46 | |||
| 5 | ? – 4 | 12 | 79W | 59 | |||
| 6 | A – 2 | 16 | 37W | 17 | |||
| 7 | C – 13 | 22 | 01W | 341 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.