Daily Sunspot Evaluation
Observation Sheet Sunday, 11 September 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)
- 5
- Number of spots (f)
- 39
- Relative number (R)
- 89
- Observer
- HıE
- Reading
- all checks consistent
- File
- 19660911.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 7 | 21 | 14°E | 353 | |||
| 2 | A – 4 | 21 | 22°E | 345 | |||
| 3 | B – 12 | -17 | 32°W | 39 | |||
| 4 | J – 2 | -21 | 46°W | 53 | |||
| 5 | D – 14 | -21 | 55°W | 62 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.