Daily Sunspot Evaluation
Observation Sheet Thursday, 29 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)
- 30
- Relative number (R)
- 90
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19661229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 20 | 6E | 3 | |||
| 2 | B – 17 | -28 | 4N | 13 | |||
| 3 | J – 1 | -23 | 14W | 23 | |||
| 4 | ? – 1 | 30 | 74W | 83 | |||
| 5 | ? – 2 | 34 | 65W | 74 | |||
| 6 | B – 8 | 20 | 1W | 15 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.