Daily Sunspot Evaluation
Observation Sheet Saturday, 7 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)
- 7
- Number of spots (f)
- 24
- Relative number (R)
- 94
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | -20 | 41E | 90 | |||
| 2 | A – 1 | -16 | 32E | 99 | |||
| 3 | A – 1 | -28 | 02W | 133 | |||
| 4 | A – 1 | -26 | 19W | 150 | |||
| 5 | E – 14 | -16 | 44W | 175 | |||
| 6 | J – 1 | -2 | 21W | 152 | |||
| 7 | H – 2 | 12 | 61W | 192 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.