Daily Sunspot Evaluation
Observation Sheet Wednesday, 7 October 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)
- 5
- Number of spots (f)
- 86
- Relative number (R)
- 136
- Observer
- FA
- Reading
- all checks consistent
- File
- 19701007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 15 | 17 | 61E | 119 | |||
| 2 | C – 6 | -12 | 72E | 108 | |||
| 3 | E – 55 | -11 | 02W | 182 | |||
| 4 | A – 2 | -9 | 74W | 254 | |||
| 5 | C – 8 | 17 | 66W | 246 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.