Daily Sunspot Evaluation
Observation Sheet Sunday, 9 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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19661009.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 23 | 06E | 350 | 5437 | ||
| 2 | A – 3 | 22 | 18E | 338 | |||
| 3 | G – 6 | -23 | 45W | 41 | |||
| 4 | H – 12 | 21 | 05W | 10 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.