Daily Sunspot Evaluation
Observation Sheet Saturday, 10 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)
- 114
- Relative number (R)
- 154
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701010.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 42 | 18 | 17E | 121 | |||
| 2 | B – 6 | -12 | 31E | 107 | |||
| 3 | C – 12 | -12 | 20E | 118 | |||
| 4 | E – 54 | -10 | 44W | 182 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.