Daily Sunspot Evaluation
Observation Sheet Friday, 3 December 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)
- 32
- Relative number (R)
- 92
- Observer
- FA
- Reading
- all checks consistent
- File
- 19711203.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 15 | 03E | 7 | |||
| 2 | H – 5 | -4 | 48E | 322 | |||
| 3 | A – 2 | -14 | 78E | 292 | |||
| 4 | C – 13 | -13 | 24W | 34 | |||
| 5 | ? – 4 | -18 | 80W | 90 | |||
| 6 | D – 7 | 11 | 71W | 81 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.