Daily Sunspot Evaluation
Observation Sheet Saturday, 31 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)
- 8
- Number of spots (f)
- 95
- Relative number (R)
- 175
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701031.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 23 | 70E | 153 | |||
| 2 | H – 15 | -12 | 27E | 196 | |||
| 3 | G – 2 | -11 | 60W | 283 | |||
| 4 | D – 16 | 2 | 42W | 265 | |||
| 5 | A – 2 | 4 | 35W | 258 | |||
| 6 | D – 21 | 12 | 36W | 259 | |||
| 7 | H – 2 | 14 | 75W | 298 | |||
| 8 | E – 36 | 8 | 18W | 241 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.