Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 September 2006
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)
- 2
- Number of spots (f)
- 9
- Relative number (R)
- 29
- Observer
- SA
- Reading
- all checks consistent
- File
- 20060912.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | -10 | 58W | 175 | 59W | 1 | |
| 2 | CKO – 6 | -13 | 12W | 129 | 13W | ~10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.