Daily Sunspot Evaluation
Observation Sheet Friday, 30 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)
- 34
- Relative number (R)
- 74
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680830.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 20 | 11 | 52E | 184 | |||
| 2 | B – 8 | -12 | 27E | 209 | |||
| 3 | A – 5 | -9 | 21W | 257 | |||
| 4 | A – 1 | 21 | 80W | 316 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.