Daily Sunspot Evaluation
Observation Sheet Wednesday, 10 December 1958
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)
- 15
- Number of spots (f)
- 183
- Relative number (R)
- 333
- Observer
- ET
- Reading
- all checks consistent
- File
- 19581210.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 9 | 28 | 15E | ||||
| 2 | B – 10 | 10 | 28E | ||||
| 3 | C – 5 | 10 | 65E | ||||
| 4 | F – 64 | -4 | 25E | ||||
| 5 | H – 6 | -3 | 12E | ||||
| 6 | C – 4 | -15 | 40E | ||||
| 7 | E – 16 | -19 | 41E | ||||
| 8 | B – 10 | -30 | 17E | ||||
| 9 | A – 3 | -19 | 9W | ||||
| 10 | B – 7 | -13 | 13W | ||||
| 11 | A – 2 | -8 | 9W | ||||
| 12 | J – 3 | -21 | 57W | ||||
| 13 | D – 7 | -7 | 66W | ||||
| 14 | ? – 3 | 7 | 77W | ||||
| 15 | C – 34 | 15 | 6W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.