Daily Sunspot Evaluation
Observation Sheet Sunday, 11 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)
- 5
- Number of spots (f)
- 160
- Relative number (R)
- 210
- Observer
- LT
- Reading
- all checks consistent
- File
- 19661211.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 33 | 22 | 28°E | 217 | |||
| 2 | ? – 3 | 18 | 73°E | 172 | |||
| 3 | F – 95 | -33 | 03°W | 248 | |||
| 4 | H – 1 | 8 | 15°W | 260 | |||
| 5 | D – 28 | 23 | 02°W | 247 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.