Daily Sunspot Evaluation
Observation Sheet Saturday, 10 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)
- 7
- Number of spots (f)
- 41
- Relative number (R)
- 111
- Observer
- DK
- Reading
- all checks consistent
- File
- 19680810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | -19 | 90E | 51 | |||
| 2 | J – 1 | -15 | 33E | 108 | |||
| 3 | B – 4 | 1 | 53W | 194 | |||
| 4 | A – 1 | 7 | 33W | 174 | |||
| 5 | H – 27 | 11 | 16W | 157 | |||
| 6 | B – 3 | 15 | 63W | 204 | |||
| 7 | B – 4 | 14 | 29W | 170 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.