Daily Sunspot Evaluation
Observation Sheet Wednesday, 10 November 1971
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)
- 18
- Relative number (R)
- 58
- Observer
- FA
- Reading
- all checks consistent
- File
- 19711110.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | -4 | 17E | 297 | |||
| 2 | A – 1 | -19 | 08W | 322 | |||
| 3 | J – 2 | -20 | 47W | 1 | |||
| 4 | H – 8 | -10 | 49W | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.