Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 February 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)
- 10
- Number of spots (f)
- 54
- Relative number (R)
- 154
- Observer
- MH
- Reading
- all checks consistent
- File
- 19580226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | 31 | 29E | ||||
| 2 | A – 1 | 6 | 63E | ||||
| 3 | C – 4 | -25 | 57E | ||||
| 4 | B – 3 | -34 | 7W | ||||
| 5 | G – 11 | -14 | 13W | ||||
| 6 | C – 4 | -26 | 41W | ||||
| 7 | D – 14 | -21 | 65W | ||||
| 8 | G – 5 | -15 | 55W | ||||
| 9 | G – 5 | -11 | 35W | ||||
| 10 | A – 1 | -7 | 45W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.