Daily Sunspot Evaluation
Observation Sheet Tuesday, 6 September 1966
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)
- 4
- Number of spots (f)
- 4
- Relative number (R)
- 44
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19660906.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 20 | 74E | 359 | |||
| 2 | A – 1 | 21 | 73E | 249 ⚠ | |||
| 3 | A – 1 | -21 | 19E | 55 | |||
| 4 | A – 1 | 25 | 79W | 151 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.