Daily Sunspot Evaluation
Observation Sheet Friday, 8 February 1957
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)
- 70
- Relative number (R)
- 170
- Observer
- FY
- Reading
- all checks consistent
- File
- 19570208.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 13 | 70E | ||||
| 2 | A – 1 | 8 | 68E | ||||
| 3 | A – 1 | -22 | 54E | ||||
| 4 | E – 22 | -26 | 34E | ||||
| 5 | B – 8 | -13 | 6E | ||||
| 6 | C – 14 | -22 | 6W | ||||
| 7 | B – 6 | -16 | 9W | ||||
| 8 | H – 7 | -20 | 43W | ||||
| 9 | A – 3 | 15 | 39W | ||||
| 10 | B – 5 | 24 | 7W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.