Daily Sunspot Evaluation
Observation Sheet Saturday, 8 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)
- 12
- Number of spots (f)
- 127
- Relative number (R)
- 247
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580208.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 19 | 0 | ||||
| 2 | A – 1 | 24 | 27E | ||||
| 3 | B – 8 | 20 | 64E | ||||
| 4 | ? – 2 | 13 | 68E | ||||
| 5 | B – 6 | -15 | 27E | ||||
| 6 | F – 49 | -19 | 18E | ||||
| 7 | H – 19 | -12 | 0 | ||||
| 8 | A – 2 | -17 | 62W | ||||
| 9 | C – 32 | -13 | 30W | ||||
| 10 | A – 2 | 10 | 56W | ||||
| 11 | A – 1 | 20 | 43W | ||||
| 12 | B – 4 | 19 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.