Daily Sunspot Evaluation
Observation Sheet Tuesday, 5 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)
- 7
- Number of spots (f)
- 34
- Relative number (R)
- 104
- Observer
- ET
- Reading
- all checks consistent
- File
- 19570205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 8 | 17 | 1E | ||||
| 2 | A – 1 | -13 | 40E | ||||
| 3 | ? – 9 | -24 | 72E | ||||
| 4 | B – 6 | -25 | 32E | ||||
| 5 | H – 6 | -20 | 4W | ||||
| 6 | A – 1 | -26 | 5W | ||||
| 7 | A – 3 | 14 | 74W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.