Daily Sunspot Evaluation
Observation Sheet Saturday, 31 August 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)
- 4
- Number of spots (f)
- 30
- Relative number (R)
- 70
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680831.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 21 | 12 | 38E | 185 | |||
| 2 | ? – 1 | -4 | 75E | 148 | |||
| 3 | ? – 1 | -27 | 72E | 151 | |||
| 4 | B – 7 | -12 | 14E | 209 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.