Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 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)
- 9
- Number of spots (f)
- 46
- Relative number (R)
- 136
- Observer
- WG
- Reading
- all checks consistent
- File
- 19570206.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 16 | 25E | ||||
| 2 | A – 2 | -13 | 26E | ||||
| 3 | A – 2 | -16 | 22E | ||||
| 4 | G – 7 | -25 | 60E | ||||
| 5 | C – 12 | -21 | 18E | ||||
| 6 | A – 1 | -31 | 27E | ||||
| 7 | H – 8 | -20 | 17W | ||||
| 8 | B – 2 | -23 | 26W | ||||
| 9 | C – 10 | 16 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.