Daily Sunspot Evaluation
Observation Sheet Thursday, 4 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)
- 97
- Relative number (R)
- 237
- Observer
- AK
- Reading
- all checks consistent
- File
- 19581204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 12 | 16 | 73E | ||||
| 2 | D – 9 | 2 | 14E | ||||
| 3 | J – 1 | -9 | 70E | ||||
| 4 | J – 1 | -12 | 52E | ||||
| 5 | B – 10 | -8 | 16E | ||||
| 6 | A – 4 | -14 | 21E | ||||
| 7 | H – 4 | -21 | 29E | ||||
| 8 | H – 4 | -9 | 6W | ||||
| 9 | E – 20 | -17 | 48W | ||||
| 10 | A – 2 | 6 | 65W | ||||
| 11 | C – 4 | 13 | 32W | ||||
| 12 | B – 6 | 11 | 22W | ||||
| 13 | A – 2 | 16 | 26W | ||||
| 14 | D – 18 | 8 | 1W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.