Daily Sunspot Evaluation
Observation Sheet Saturday, 3 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)
- 4
- Number of spots (f)
- 17
- Relative number (R)
- 57
- Observer
- SM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19701003.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 19 | 42E | 131 ⚠ | |||
| 2 | C – 6 | -10 | 52E | 181 | |||
| 3 | H – 5 | -7 | 49W | 282 | |||
| 4 | A – 5 | 18 | 12W | 245 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.