Daily Sunspot Evaluation
Observation Sheet Sunday, 11 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)
- 10
- Number of spots (f)
- 36
- Relative number (R)
- 136
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | 16 | 27E | 101 | |||
| 2 | ? – 3 | -18 | 69E | 59 | |||
| 3 | J – 1 | -15 | 19E | 109 | |||
| 4 | A – 3 | -21 | 45W | 173 | |||
| 5 | A – 3 | -4 | 10W | 138 | |||
| 6 | A – 1 | 2 | 67W | 195 | |||
| 7 | A – 1 | 7 | 47W | 175 | |||
| 8 | H – 17 | 11 | 31W | 159 | |||
| 9 | B – 2 | 7 | 06W | 134 | |||
| 10 | A – 1 | 15 | 42W | 170 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.