Daily Sunspot Evaluation
Observation Sheet Tuesday, 6 December 1966
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)
- 20
- Relative number (R)
- 80
- Observer
- SK
- Reading
- all checks consistent
- File
- 19661206.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 10 | 07E | 304 | |||
| 2 | D – 10 | 28 | 53E | 258 | |||
| 3 | G – 4 | 11 | 44E | 267 | |||
| 4 | H – 1 | 7 | 52E | 259 | |||
| 5 | ? – 3 | -28 | 64E | 247 | |||
| 6 | A – 1 | 17 | 78W | 29 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.