Daily Sunspot Evaluation
Observation Sheet Sunday, 9 August 1970
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)
- 73
- Relative number (R)
- 113
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700809.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 28 | 18 | 03°E | 236 | |||
| 2 | E – 15 | 20 | 39°E | 200 | |||
| 3 | D – 29 | -7 | 09°W | 248 | |||
| 4 | A – 1 | 16 | 19°W | 258 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.