Daily Sunspot Evaluation
Observation Sheet Wednesday, 4 February 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)
- 13
- Number of spots (f)
- 69
- Relative number (R)
- 199
- Observer
- ET
- Reading
- all checks consistent
- File
- 19590204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 24 | 12 | 33E | ||||
| 2 | ? – 2 | 24 | 73E | ||||
| 3 | ? – 1 | 20 | 78E | ||||
| 4 | J – 3 | 8 | 50E | ||||
| 5 | J – 4 | -13 | 33E | ||||
| 6 | A – 2 | -26 | 18E | ||||
| 7 | A – 1 | -12 | 25W | ||||
| 8 | A – 2 | -9 | 36W | ||||
| 9 | A – 1 | -9 | 9W | ||||
| 10 | A – 6 | 13 | 50W | ||||
| 11 | B – 3 | 13 | 38W | ||||
| 12 | H – 5 | 14 | 13W | ||||
| 13 | E – 15 | 21 | 1W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.