Daily Sunspot Evaluation
Observation Sheet Sunday, 8 September 1968
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)
- 8
- Number of spots (f)
- 37
- Relative number (R)
- 117
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680908.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 11 | 05°E | 112 | |||
| 2 | B – 6 | -14 | 45°E | 72 | |||
| 3 | D – 9 | -21 | 25°E | 92 | |||
| 4 | A – 1 | -26 | 34°W | 151 | |||
| 5 | E – 10 | -15 | 60°W | 177 | |||
| 6 | H – 1 | -2 | 37°W | 154 | |||
| 7 | J – 1 | 12 | 78°W | 195 | |||
| 8 | B – 6 | 12 | 13°W | 130 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.