Daily Sunspot Evaluation
Observation Sheet Friday, 5 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)
- 5
- Number of spots (f)
- 16
- Relative number (R)
- 66
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690905.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 21 | 40E | 340 | |||
| 2 | B – 2 | 17 | 38E | 342 | |||
| 3 | ? – 3 | -8 | 78W | 98 | |||
| 4 | G – 3 | 8 | 66W | 86 | |||
| 5 | A – 3 | 13 | 37W | 57 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.