Daily Sunspot Evaluation
Observation Sheet Friday, 7 October 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)
- 36
- Relative number (R)
- 66
- Observer
- LT
- Reading
- all checks consistent
- File
- 19661007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 14 | 20 | 22E | 1 | |||
| 2 | B – 9 | 22 | 32E | 351 | |||
| 3 | D – 13 | -23 | 16W | 39 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.