Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 July 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)
- 8
- Number of spots (f)
- 42
- Relative number (R)
- 122
- Observer
- SM
- Reading
- all checks consistent
- File
- 19700708.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 6 | 17 | 36°E | 265 | |||
| 2 | J – 1 | 17 | 72°E | 229 | |||
| 3 | E – 19 | -9 | 18°W | 319 | |||
| 4 | G – 6 | -9 | 60°W | 1 | |||
| 5 | D – 4 | -2 | 77°W | 13 | |||
| 6 | B – 2 | 4 | 28°W | 339 | |||
| 7 | J – 2 | 8 | 65°W | 6 | |||
| 8 | A – 2 | 16 | 35°W | 336 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.