Daily Sunspot Evaluation
Observation Sheet Friday, 2 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)
- 6
- Number of spots (f)
- 71
- Relative number (R)
- 131
- Observer
- SM
- Reading
- all checks consistent
- File
- 19680802.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 20 | 38E | 209 | |||
| 2 | ? – 1 | 7 | 75E | 172 | |||
| 3 | A – 3 | -22 | 22W | 267 | |||
| 4 | C – 29 | 7 | 33W | 280 | |||
| 5 | C – 32 | 14 | 32W | 279 | |||
| 6 | A – 3 | 17 | 05W | 252 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.