Daily Sunspot Evaluation
Observation Sheet Wednesday, 14 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)
- 4
- Number of spots (f)
- 60
- Relative number (R)
- 100
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19661214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 16 | 11E | 174 ⚠ | |||
| 2 | E – 43 | -26 | 49W | 249 | |||
| 3 | H – 1 | 13 | 5W | 260 ⚠ | |||
| 4 | D – 12 | 21 | 12W | 217 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.