Daily Sunspot Evaluation
Observation Sheet Thursday, 1 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)
- 3
- Number of spots (f)
- 7
- Relative number (R)
- 37
- Observer
- LT
- Reading
- all checks consistent
- File
- 19661201.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 4 | 26 | 13E | 2 | |||
| 2 | ? – 1 | 10 | 75E | 300 | |||
| 3 | J – 2 | 19 | 14W | 29 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.