Daily Sunspot Evaluation
Observation Sheet Saturday, 6 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)
- 6
- Number of spots (f)
- 30
- Relative number (R)
- 90
- Observer
- FA
- Reading
- all checks consistent
- File
- 19711106.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 9 | 11 | 06E | 0 | |||
| 2 | H – 15 | -10 | 03E | 3 | |||
| 3 | J – 2 | -19 | 05E | 1 | |||
| 4 | ? – 1 | -10 | 85W | 91 | |||
| 5 | H – 1 | 11 | 75W | 81 | |||
| 6 | B – 2 | 11 | 14W | 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.