Daily Sunspot Evaluation
Observation Sheet Monday, 1 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)
- 50
- Relative number (R)
- 120
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 5 | 10 | 01E | 72 | |||
| 2 | A – 1 | 13 | 53E | 20 | |||
| 3 | A – 1 | -18 | 19E | 54 | |||
| 4 | C – 21 | 8 | 06W | 79 | |||
| 5 | A – 1 | -10 | 19W | 92 | |||
| 6 | C – 10 | -10 | 30W | 103 | |||
| 7 | G – 11 | 12 | 58W | 131 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.