Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 December 1959
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)
- 8
- Number of spots (f)
- 57
- Relative number (R)
- 137
- Observer
- SG
- Reading
- all checks consistent
- File
- 19591209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 20 | 79E | ||||
| 2 | B – 3 | -16 | 6W | ||||
| 3 | B – 4 | -16 | 19W | ||||
| 4 | B – 4 | -11 | 19W | ||||
| 5 | E – 27 | 10 | 53W | ||||
| 6 | A – 1 | 18 | 49W | ||||
| 7 | C – 8 | 19 | 9W | ||||
| 8 | H – 8 | 8 | 3W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.