Daily Sunspot Evaluation
Observation Sheet Tuesday, 9 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)
- 14
- Number of spots (f)
- 134
- Relative number (R)
- 274
- Observer
- MH
- Reading
- all checks consistent
- File
- 19581209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 27 | 14 | 6°E | ||||
| 2 | A – 3 | 27 | 28E | ||||
| 3 | J – 2 | 9 | 39E | ||||
| 4 | ? – 2 | 10 | 80E | ||||
| 5 | H – 3 | -3 | 24E | ||||
| 6 | F – 42 | -5 | 38E | ||||
| 7 | D – 14 | -19 | 55E | ||||
| 8 | B – 11 | -30 | 31E | ||||
| 9 | J – 2 | -9 | 4E | ||||
| 10 | B – 2 | -19 | 2E | ||||
| 11 | B – 4 | -14 | 1E | ||||
| 12 | H – 6 | -21 | 35W | ||||
| 13 | G – 10 | -7 | 53W | ||||
| 14 | G – 6 | 8 | 69W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.