Daily Sunspot Evaluation
Observation Sheet Monday, 11 July 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)
- 29
- Relative number (R)
- 69
- Observer
- SB
- Reading
- all checks consistent
- File
- 19660711.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | -32 | 7W | 109 | |||
| 2 | B – 6 | 19 | 60W | 163 | |||
| 3 | A – 2 | 22 | 57W | 157 | |||
| 4 | C – 10 | 31 | 62W | 164 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.